행위

"SQL 모음"의 두 판 사이의 차이

DB CAFE

(패키지 검색 1 - 특정 오라클 사용자 중에서 패키지 소스와 일치하는 텍스트를 조회)
(사용자 5명의 중간 판 135개는 보이지 않습니다)
1번째 줄: 1번째 줄:
# 1.테이블 스페이스
+
= 인덱스 정보=
----
 
 
 
## 1 테이블스페이스별 파일 목록을 보기
 
 
 
SELECT    SUBSTRB(TABLESPACE_NAME, 1, 10) AS "테이블스페이스"
 
        ,SUBSTRB(FILE_NAME, 1, 50) AS "파일명"
 
        ,TO_CHAR(BLOCKS, '999,999,990') AS "블럭수"
 
        ,TO_CHAR(BYTES, '99,999,999') AS "크기"
 
FROM      DBA_DATA_FILES
 
ORDER BY  TABLESPACE_NAME, FILE_NAME;
 
 
  
## 2 테이블스페이스별 정보 보기
 
  
SELECT    A.TABLESPACE_NAME AS "TABLESPACE"
+
== INDEX 보기  ==
        ,A.INITIAL_EXTENT / 1024 AS "INIT(K)"
+
* USER_INDEXES
        ,A.NEXT_EXTENT / 1024 AS "NEXT(K)"
+
* USER_IND_COLUMNS
        ,A.MIN_EXTENTS AS "MIN"
+
<source lang="sql">
        ,A.MAX_EXTENTS AS "MAX"
 
        ,A.PCT_INCREASE AS "PCT_INC(%)"
 
        ,B.FILE_NAME AS "FILE_NAME"
 
        ,B.BLOCKS * C.VALUE / 1024 / 1024 AS "SIZE(M)"
 
        ,B.STATUS AS "STATUS"
 
FROM      DBA_TABLESPACES A
 
        ,DBA_DATA_FILES B
 
        ,V$PARAMETER C
 
WHERE    A.TABLESPACE_NAME = B.TABLESPACE_NAME
 
AND      C.NAME = 'db_block_size'
 
ORDER BY  1, 2;
 
 
  
## 3 테이블스페이스별 사용하는 파일의 크기 합 보기
+
SELECT A.INDEX_NAME
 +
    , A.UNIQUENESS
 +
    , TO_CHAR(COLUMN_POSITION, '999') AS POS
 +
    , SUBSTRB(COLUMN_NAME, 1, 33) AS COLUMN_NAME
 +
  FROM USER_INDEXES A
 +
    , USER_IND_COLUMNS B
 +
WHERE A.INDEX_NAME = B.INDEX_NAME
 +
  AND A.TABLE_OWNER = UPPER('E_LUCIS')
 +
  AND A.TABLE_NAME = UPPER('&테이블명') ORDER BY 1, 3;
 +
</source>
  
SELECT   SUBSTRB(TABLESPACE_NAME, 1, 10) AS TABLESPACE
+
== 전체 INDEX 보기  ==
        ,TO_CHAR(SUM(BYTES), '9,999,999,999,990') AS BYTES
+
* DBA_INDEXES
        ,TO_CHAR(SUM(BLOCKS), '9,999,999,990') AS BLOCKS
+
* DBA_IND_COLUMNS
FROM     DBA_DATA_FILES
+
<source lang="sql">
GROUP BY  TABLESPACE_NAME
+
SELECT SUBSTRB(A.TABLE_NAME, 1, 22) AS TABLE_NAME
UNION ALL
+
    , SUBSTRB(A.INDEX_NAME, 1, 23) AS INDEX_NAME
SELECT    '총계', TO_CHAR(SUM(BYTES), '9,999,999,999,990') AS BYTES, TO_CHAR(SUM(BLOCKS), '9,999,999,990') AS BLOCKS
+
    , SUBSTRB(A.UNIQUENESS, 1, 7) AS UNIQUE
FROM      DBA_DATA_FILES;
+
     , TO_CHAR(COLUMN_POSITION, '999') AS POS
+
    , SUBSTRB(COLUMN_NAME, 1, 20) AS COLUMN_NAME
 +
  FROM DBA_INDEXES A
 +
     , DBA_IND_COLUMNS B
 +
WHERE A.INDEX_NAME = B.INDEX_NAME
 +
  AND A.TABLE_OWNER = B.TABLE_OWNER
 +
  AND A.TABLE_OWNER = 'E_LUCIS'
 +
ORDER BY 1, 2, 3;  
 +
</source>
  
## 4 테이블스페이스별 디스크 사용량 보기
+
== 특정 테이블의 인덱스 확인  ==
 +
* ALL_IND_COLUMNS
 +
<source lang="sql">
 +
/* 인덱스를 확인 하고자 할때 사용하는 쿼리 */
 +
SELECT C.TABLE_NAME
 +
    , C.INDEX_NAME
 +
    , C.COLUMN_NAME
 +
    , C.COLUMN_POSITION
 +
    , T.NUM_ROWS
 +
  FROM ALL_IND_COLUMNS C
 +
    , (SELECT TABLE_NAME, NUM_ROWS
 +
          FROM ALL_TABLES
 +
        WHERE OWNER = 'ESTDBA'
 +
          AND TABLE_NAME IN (SELECT TABLE_NAME                                   
 +
                                FROM USER_TABLES
 +
                              WHERE TABLE_NAME LIKE:IN_TABLE_NAME || '%'
 +
                                  )
 +
          AND NUM_ROWS > 0
 +
      ) T
 +
WHERE C.TABLE_NAME = T.TABLE_NAME
 +
ORDER BY T.NUM_ROWS DESC, C.TABLE_NAME, C.INDEX_NAME, C.COLUMN_POSITION;
 +
</source>
  
SELECT    A.TABLESPACE_NAME AS "TABLESPACE"
+
== 인덱스에 대한 컬럼 조회  ==
        ,A.INIT AS "INIT(K)"
+
* USER_IND_COLUMNS
        ,A.NEXT AS "NEXT(K)"
+
<source lang="sql">
        ,A.MIN AS "MIN"
+
SELECT TABLE_NAME
        ,A.MAX AS "MAX"
+
     , INDEX_NAME
        ,A.PCT_INC AS "PCT_INC(%)"
+
     , COLUMN_POSITION
        ,TO_CHAR(B.TOTAL, '999,999,999,990') AS "총량(바이트)"
+
     , COLUMN_NAME
        ,TO_CHAR(C.FREE, '999,999,999,990') AS "남은량(바이트)"
+
  FROM USER_IND_COLUMNS  
        ,TO_CHAR(B.BLOCKS, '9,999,990') AS "총블럭"
+
ORDER BY TABLE_NAME, INDEX_NAME, COLUMN_POSITION; </source>
        ,TO_CHAR(D.BLOCKS, '9,999,990') AS "사용블럭"
 
        ,TO_CHAR(100 * NVL(D.BLOCKS, 0) / B.BLOCKS, '999.99') AS "사용율%"
 
FROM      (SELECT    TABLESPACE_NAME
 
                    ,INITIAL_EXTENT / 1024 AS INIT
 
                    ,NEXT_EXTENT / 1024 AS NEXT
 
                    ,MIN_EXTENTS AS MIN
 
                    ,MAX_EXTENTS AS MAX
 
                    ,PCT_INCREASE AS PCT_INC
 
          FROM      DBA_TABLESPACES) A
 
        ,(SELECT    TABLESPACE_NAME, SUM(BYTES) AS TOTAL, SUM(BLOCKS) AS BLOCKS
 
          FROM      DBA_DATA_FILES
 
          GROUP BY  TABLESPACE_NAME) B
 
        ,(SELECT    TABLESPACE_NAME, SUM(BYTES) AS FREE
 
          FROM      DBA_FREE_SPACE
 
          GROUP BY  TABLESPACE_NAME) C
 
        ,(SELECT    TABLESPACE_NAME, SUM(BLOCKS) AS BLOCKS
 
          FROM      DBA_EXTENTS
 
          GROUP BY  TABLESPACE_NAME) D
 
WHERE    A.TABLESPACE_NAME = B.TABLESPACE_NAME(+)
 
AND      A.TABLESPACE_NAME = C.TABLESPACE_NAME(+)
 
AND      A.TABLESPACE_NAME = D.TABLESPACE_NAME(+)
 
ORDER BY  A.TABLESPACE_NAME;
 
 
 
 
## 5 테이블스페이스의 테이블 명 보기
 
 
 
SELECT    TABLESPACE_NAME, TABLE_NAME
 
FROM      USER_TABLES
 
WHERE    TABLESPACE_NAME = UPPER('&테이블스페이스명')
 
ORDER BY  TABLESPACE_NAME, TABLE_NAME;
 
 
## 6 공간의 90% 이상을 사용하고 있는 Tablespace
 
 
 
SELECT    X.TABLESPACE_NAME
 
        ,TOTAL_SIZE / 1024 / 1024 TOTAL_SIZE
 
        ,USED_SIZE / 1024 / 1024 USED_SIZE
 
        ,(ROUND(USED_SIZE / TOTAL_SIZE, 2)) * 100 USED_RATIO
 
FROM      (SELECT    TABLESPACE_NAME, SUM(BYTES) TOTAL_SIZE
 
          FROM      DBA_DATA_FILES
 
          GROUP BY  TABLESPACE_NAME) X
 
        ,(SELECT    TABLESPACE_NAME, SUM(BYTES) USED_SIZE
 
          FROM      DBA_EXTENTS
 
          GROUP BY  TABLESPACE_NAME) Y
 
WHERE    X.TABLESPACE_NAME = Y.TABLESPACE_NAME(+)
 
AND      Y.USED_SIZE > .9 * X.TOTAL_SIZE;
 
 
## 7 Object별 테이블스페이스 및 데이터파일
 
 
 
SELECT    DISTINCT E.SEGMENT_NAME, E.TABLESPACE_NAME, F.FILE_NAME
 
FROM      DBA_EXTENTS E
 
        ,DBA_DATA_FILES F
 
WHERE    E.FILE_ID = F.FILE_ID
 
AND      E.SEGMENT_TYPE = 'TABLE'
 
AND      E.TABLESPACE_NAME NOT IN ('SYSTEM', 'TOOLS');
 
 
 
## 8 Tablespace별 Table, Index 개수
 
 
 
 
SELECT    OWNER
 
        ,TABLESPACE_NAME
 
        ,SUM(DECODE(SEGMENT_TYPE, 'TABLE', 1, 0))
 
        ,SUM(DECODE(SEGMENT_TYPE, 'INDEX', 1, 0))
 
FROM      DBA_SEGMENTS
 
WHERE    SEGMENT_TYPE IN ('TABLE', 'INDEX')
 
GROUP BY  OWNER, TABLESPACE_NAME;
 
 
 
 
 
## 9 위치별 space를  아는 방법
 
 
SELECT    SUBSTRB(A.FILE_NAME, 1, 40) AS FILE_NAME
 
        ,A.FILE_ID
 
        ,B.FREE_BYTES / 1024 AS FREE_BYTES
 
        ,B.MAX_BYTES / 1024 AS MAX_BYTES
 
FROM      DBA_DATA_FILES A
 
        ,(SELECT    FILE_ID, SUM(BYTES) AS FREE_BYTES, MAX(BYTES) AS MAX_BYTES
 
          FROM      DBA_FREE_SPACE
 
          GROUP BY  FILE_ID) B
 
WHERE    A.FILE_ID = B.FILE_ID
 
AND      A.TABLESPACE_NAME = UPPER('&테이블스페이스명')
 
ORDER BY  A.FILE_NAME;
 
 
 
 
 
## 10 현재 Extension 횟수가 MaxExtents의 80% 이상인 경우
 
 
 
SELECT    TABLESPACE_NAME
 
        ,OWNER
 
        ,SEGMENT_NAME
 
        ,SEGMENT_TYPE
 
        ,EXTENTS
 
        ,MAX_EXTENTS
 
FROM      SYS.DBA_SEGMENTS S
 
WHERE    EXTENTS / MAX_EXTENTS > .8
 
AND      MAX_EXTENTS > 0
 
ORDER BY  TABLESPACE_NAME, OWNER, SEGMENT_NAME;
 
 
 
 
 
## 11 테이블의 익스텐트 정보 조회
 
 
 
 
/*
 
    오라클에서 스토리지 구조는 아래와 같다.
 
    테이블 스페이스 -> 세그먼트 -> 익스텐트 -> 블록 -> OS 범위 -> 데이터 파일 -> 운영체제 블록
 
   
 
    세그먼트의 이름,
 
    해당 세그먼트의 최대 익스텐트 개수,
 
    익스텐트 아이디
 
    해당 세그먼트의 최대 익스텐트 개수 - 최대 익스텐트 아이디
 
   
 
    딕셔너리 관리 테이블스페이스로 생성한 것으로 조회를 한다.
 
   
 
*/
 
 
SELECT    B.SEGMENT_NAME
 
        ,B.MAX_EXTENTS
 
        ,MAX(C.EXTENT_ID) AS EXTENT_ID
 
        ,B.MAX_EXTENTS - MAX(C.EXTENT_ID) AS DIFF
 
FROM      USER_TABLESPACES A
 
        ,USER_SEGMENTS B
 
        ,USER_EXTENTS C
 
WHERE    A.EXTENT_MANAGEMENT = 'DICTIONARY'
 
AND      B.TABLESPACE_NAME = A.TABLESPACE_NAME
 
AND      C.SEGMENT_NAME = B.SEGMENT_NAME
 
GROUP BY  B.SEGMENT_NAME, B.MAX_EXTENTS
 
HAVING    B.MAX_EXTENTS - MAX(C.EXTENT_ID) <= 50
 
ORDER BY  B.MAX_EXTENTS - MAX(C.EXTENT_ID);
 
 
 
 
 
 
## 12 ROLLBACK SEGMENT의 사용상황 보기
 
 
 
--: EXTENTS = 현재 할당된 EXTENT의 수
 
--: EXTENDS = 마지막 트랜잭션에 의해 할당된 EXTENT의 수
 
 
SELECT    SUBSTRB(A.SEGMENT_NAME, 1, 10) AS SEGMENT_NAME
 
        ,SUBSTRB(A.TABLESPACE_NAME, 1, 10) AS TABLESPACE_NAME
 
        ,TO_CHAR(A.SEGMENT_ID, '99,999') AS SEG_ID
 
        ,TO_CHAR(A.MAX_EXTENTS, '999,999') AS MAX_EXT
 
        ,TO_CHAR(B.EXTENTS, '999,999') AS EXTENTS
 
        ,TO_CHAR(B.EXTENDS, '999,999') AS EXTENDS
 
        ,TO_CHAR((A.INITIAL_EXTENT + (B.EXTENTS - 1) * A.NEXT_EXTENT) / 1000000, '9,999.999') AS "ALLOC(MB)"
 
        ,TO_CHAR(XACTS, '9,999') AS XACTS
 
FROM      DBA_ROLLBACK_SEGS A
 
        ,V$ROLLSTAT B
 
WHERE    A.SEGMENT_ID = B.USN(+)
 
ORDER BY  1;
 
 
 
 
 
 
 
# 2.인덱스 정보
 
 
 
## 13 INDEX 보기
 
 
SELECT   A.INDEX_NAME
 
        ,A.UNIQUENESS
 
        ,TO_CHAR(COLUMN_POSITION, '999') AS POS
 
        ,SUBSTRB(COLUMN_NAME, 1, 33) AS COLUMN_NAME
 
FROM     USER_INDEXES A
 
        ,USER_IND_COLUMNS B
 
WHERE    A.INDEX_NAME = B.INDEX_NAME
 
AND      A.TABLE_OWNER = UPPER('E_LUCIS')
 
AND      A.TABLE_NAME = UPPER('&테이블명')
 
ORDER BY  1, 3;
 
 
 
 
## 14 전체 INDEX 보기
 
 
 
 
SELECT    SUBSTRB(A.TABLE_NAME, 1, 22) AS TABLE_NAME
 
        ,SUBSTRB(A.INDEX_NAME, 1, 23) AS INDEX_NAME
 
        ,SUBSTRB(A.UNIQUENESS, 1, 7) AS UNIQUE
 
        ,TO_CHAR(COLUMN_POSITION, '999') AS POS
 
        ,SUBSTRB(COLUMN_NAME, 1, 20) AS COLUMN_NAME
 
FROM     DBA_INDEXES A
 
        ,DBA_IND_COLUMNS B
 
WHERE    A.INDEX_NAME = B.INDEX_NAME
 
AND      A.TABLE_OWNER = B.TABLE_OWNER
 
AND      A.TABLE_OWNER = 'E_LUCIS'
 
ORDER BY  1, 2, 3;
 
 
## 15 특정 테이블의 인덱스 확인
 
 
 
 
/*
 
  인덱스를 확인 하고자 할때 사용하는 쿼리
 
*/
 
 
SELECT    C.TABLE_NAME
 
        ,C.INDEX_NAME
 
        ,C.COLUMN_NAME
 
        ,C.COLUMN_POSITION
 
        ,T.NUM_ROWS
 
FROM     ALL_IND_COLUMNS C
 
        ,(SELECT    TABLE_NAME, NUM_ROWS
 
          FROM      ALL_TABLES
 
          WHERE    OWNER = 'ESTDBA'
 
          AND      TABLE_NAME IN (SELECT    TABLE_NAME
 
                                    FROM      USER_TABLES
 
                                    WHERE    TABLE_NAME LIKE :IN_TABLE_NAME || '%')
 
          AND      NUM_ROWS > 0) T
 
WHERE    C.TABLE_NAME = T.TABLE_NAME
 
ORDER BY  T.NUM_ROWS DESC, C.TABLE_NAME, C.INDEX_NAME, C.COLUMN_POSITION;
 
 
 
 
 
 
 
## 16 인덱스에 대한 컬럼 조회
 
 
 
SELECT    TABLE_NAME
 
        ,INDEX_NAME
 
        ,COLUMN_POSITION
 
        ,COLUMN_NAME
 
FROM     USER_IND_COLUMNS
 
ORDER BY TABLE_NAME, INDEX_NAME, COLUMN_POSITION;
 
 
## 17 PRIMARY KEY 재생성 방법
 
  
 +
== PRIMARY KEY 재생성 방법  ==
 +
<source lang="sql">
 
--- PRIMARY KEY DROP
 
--- PRIMARY KEY DROP
 
ALTER TABLE EMP DROP PRIMARY KEY;
 
 
-- PRIMARY KEY 생성
 
ALTER TABLE EMP ADD CONSTRAINT EMP_PK PRIMARY KEY(EMPNO)
 
USING INDEX STORAGE(INITIAL 1M NEXT 1M PCTINCREASE 0)
 
TABLESPACE USERS;
 
 
 
## 18 PRIMARY KEY를 REFERENCE 하는 FOREIGN KEY 찾기
 
 
SELECT    C.NAME CONSTRAINT_NAME
 
FROM      DBA_OBJECTS A
 
        ,CDEF$ B
 
        ,CON$ C
 
WHERE    A.OBJECT_NAME = UPPER('&테이블명')
 
AND      A.OBJECT_ID = B.ROBJ#
 
AND      B.CON# = C.CON#;
 
  
## 19 중복인덱스 체크
+
ALTER TABLE EMP
+
      DROP PRIMARY KEY;
SELECT    O1.NAME || '.' || N1.NAME REDUNDANT_INDEX, O2.NAME || '.' || N2.NAME SUFFICIENT_INDEX
 
FROM      SYS.ICOL$ IC1
 
        ,SYS.ICOL$ IC2
 
        ,SYS.IND$ I1
 
        ,SYS.OBJ$ N1
 
        ,SYS.OBJ$ N2
 
        ,SYS.USER$ O1
 
        ,SYS.USER$ O2
 
WHERE    IC1.POS# = 1
 
AND      IC2.BO# = IC1.BO#
 
AND      IC2.OBJ# != IC1.OBJ#
 
AND      IC2.POS# = 1
 
AND      IC2.INTCOL# = IC1.INTCOL#
 
AND      I1.OBJ# = IC1.OBJ#
 
AND      BITAND(I1.PROPERTY, 1) = 0
 
AND      (SELECT    MAX(POS#) * (MAX(POS#) + 1) / 2
 
          FROM      SYS.ICOL$
 
          WHERE    OBJ# = IC1.OBJ#) = (SELECT    SUM(XC1.POS#)
 
                                        FROM      SYS.ICOL$ XC1
 
                                                  ,SYS.ICOL$ XC2
 
                                        WHERE    XC1.OBJ# = IC1.OBJ#
 
                                        AND      XC2.OBJ# = IC2.OBJ#
 
                                        AND      XC1.POS# = XC2.POS#
 
                                        AND      XC1.INTCOL# = XC2.INTCOL#)
 
AND      N1.OBJ# = IC1.OBJ#
 
AND      N2.OBJ# = IC2.OBJ#
 
AND      O1.USER# = N1.OWNER#
 
AND      O2.USER# = N2.OWNER#;
 
 
  
## 20 테이블의 PK를 구성하는 컬럼 조회
+
-- PRIMARY KEY 생성
 
SELECT    A.TABLE_NAME, B.CONSTRAINT_NAME, C.COLUMN_NAME
 
FROM      USER_TABLES A
 
        ,USER_CONSTRAINTS B
 
        ,USER_CONS_COLUMNS C
 
WHERE    A.TABLE_NAME = B.TABLE_NAME
 
AND      B.CONSTRAINT_NAME = C.CONSTRAINT_NAME
 
AND      B.CONSTRAINT_TYPE = 'P';
 
  
 +
ALTER TABLE EMP
 +
        ADD CONSTRAINT EMP_PK
 +
    PRIMARY KEY(EMPNO)
 +
      USING INDEX STORAGE(INITIAL 1M NEXT 1M PCTINCREASE 0)
 +
TABLESPACE USERS;
  
## 21 Index가 없는 Table 조회
+
</source>
  
SELECT   OWNER, TABLE_NAME
+
== PRIMARY KEY를 REFERENCE 하는 FOREIGN KEY 찾기  ==
FROM      (SELECT    OWNER, TABLE_NAME
+
* DBA_OBJECTS
          FROM     DBA_TABLES
+
* CDEF$
          MINUS
+
* CON$
          SELECT    TABLE_OWNER, TABLE_NAME
+
<source lang="sql">
          FROM      DBA_INDEXES)
+
SELECT C.NAME CONSTRAINT_NAME
WHERE     OWNER NOT IN ('SYS', 'SYSTEM')
+
  FROM DBA_OBJECTS A
ORDER BY  OWNER, TABLE_NAME;
+
     , CDEF$ B
 +
     , CON$ C
 +
WHERE A.OBJECT_NAME = UPPER('&테이블명')  
 +
  AND A.OBJECT_ID = B.ROBJ#
 +
  AND B.CON# = C.CON#; </source>
  
 +
== 중복인덱스 체크  ==
 +
* SYS.ICOL$
 +
* SYS.IND$
 +
* SYS.OBJ$
 +
* SYS.USER$
  
# 3. 락 정보
+
<source lang="sql">
----
+
SELECT O1.NAME || '.' || N1.NAME    REDUNDANT_INDEX
 +
    , O2.NAME || '.' || N2.NAME    SUFFICIENT_INDEX
 +
  FROM SYS.ICOL$  IC1
 +
    , SYS.ICOL$  IC2
 +
    , SYS.IND$  I1
 +
    , SYS.OBJ$  N1
 +
    , SYS.OBJ$  N2
 +
    , SYS.USER$  O1
 +
    , SYS.USER$  O2
 +
WHERE    IC1.POS# = 1
 +
      AND IC2.BO# = IC1.BO#
 +
      AND IC2.OBJ# != IC1.OBJ#
 +
      AND IC2.POS# = 1
 +
      AND IC2.INTCOL# = IC1.INTCOL#
 +
      AND I1.OBJ# = IC1.OBJ#
 +
      AND BITAND (I1.PROPERTY, 1) = 0
 +
      AND (SELECT MAX (POS#) * (MAX (POS#) + 1) / 2
 +
              FROM SYS.ICOL$
 +
            WHERE OBJ# = IC1.OBJ#) =
 +
          (SELECT SUM (XC1.POS#)
 +
              FROM SYS.ICOL$ XC1, SYS.ICOL$ XC2
 +
            WHERE    XC1.OBJ# = IC1.OBJ#
 +
                  AND XC2.OBJ# = IC2.OBJ#
 +
                  AND XC1.POS# = XC2.POS#
 +
                  AND XC1.INTCOL# = XC2.INTCOL#)
 +
      AND N1.OBJ# = IC1.OBJ#
 +
      AND N2.OBJ# = IC2.OBJ#
 +
      AND O1.USER# = N1.OWNER#
 +
      AND O2.USER# = N2.OWNER#;
 +
</source>
 +
또는
 +
<source lang=sql>
  
## 22 테이블에 LOCK이 걸렸는지를 보기
+
select /*+ rule */
 +
  a.table_owner,
 +
  a.table_name,
 +
  a.index_owner,
 +
  a.index_name,
 +
  column_name_list,
 +
  column_name_list_dup,
 +
  dup duplicate_indexes,
 +
  i.uniqueness,
 +
  i.partitioned,
 +
  i.leaf_blocks,
 +
  i.distinct_keys,
 +
  i.num_rows,
 +
  i.clustering_factor
 +
from
 +
  (
 +
  select
 +
      table_owner,
 +
      table_name,
 +
      index_owner,
 +
      index_name,
 +
      column_name_list_dup,
 +
      dup,
 +
      max(dup) OVER
 +
      (partition by table_owner, table_name, index_name) dup_mx
 +
  from
 +
      (
 +
      select
 +
          table_owner,
 +
          table_name,
 +
          index_owner,
 +
          index_name,
 +
          substr(SYS_CONNECT_BY_PATH(column_name, ','),2) 
 +
          column_name_list_dup,
 +
          dup
 +
      from
 +
          (
 +
          select
 +
            index_owner,
 +
            index_name,
 +
            table_owner,
 +
            table_name,
 +
            column_name,
 +
            count(1) OVER
 +
            (partition by
 +
                index_owner,
 +
                index_name) cnt,
 +
            ROW_NUMBER () OVER
 +
              (partition by
 +
                  index_owner,
 +
                  index_name
 +
                order by column_position) as seq,
 +
            count(1) OVER
 +
              (partition by
 +
                  table_owner,
 +
                  table_name,
 +
                  column_name,
 +
                  column_position) as dup
 +
  from
 +
      sys.dba_ind_columns
 +
  where
 +
      index_owner not in ('SYS', 'SYSTEM'))
 +
where
 +
  dup!=1
 +
start with seq=1
 +
connect by prior seq+1=seq
 +
and prior index_owner=index_owner
 +
and prior index_name=index_name
 +
)) a,
 +
(
 +
select
 +
  table_owner,
 +
  table_name,
 +
  index_owner,
 +
  index_name,
 +
  substr(SYS_CONNECT_BY_PATH(column_name, ','),2) column_name_list
 +
from
 +
(
 +
select index_owner, index_name, table_owner, table_name, column_name,
 +
count(1) OVER ( partition by index_owner, index_name) cnt,
 +
ROW_NUMBER () OVER ( partition by index_owner, index_name order by column_position) as seq
 +
from sys.dba_ind_columns
 +
where index_owner not in ('SYS', 'SYSTEM'))
 +
where seq=cnt
 +
start with seq=1
 +
connect by prior seq+1=seq
 +
and prior index_owner=index_owner
 +
and prior index_name=index_name
 +
) b, dba_indexes i
 +
where
 +
    a.dup=a.dup_mx
 +
and a.index_owner=b.index_owner
 +
and a.index_name=b.index_name
 +
and a.index_owner=i.owner
 +
and a.index_name=i.index_name
 +
order by
 +
  a.table_owner, a.table_name, column_name_list_dup;
 +
</source>
  
SELECT    A.SID
+
== 테이블의 PK를 구성하는 컬럼 조회  ==
        ,A.SERIAL#
+
* USER_TABLES
        ,SUBSTRB(A.USERNAME, 1, 16) AS USERNAME
+
* USER_CONSTRAINTS
        ,SUBSTRB(A.MACHINE, 1, 30) AS MACHINE
+
* USER_CONS_COLUMNS
        ,A.TERMINAL
+
<source lang="sql">
        ,A.OSUSER
+
SELECT A.TABLE_NAME, B.CONSTRAINT_NAME, C.COLUMN_NAME
        ,A.PROGRAM
+
  FROM USER_TABLES A
        ,SUBSTRB(TO_CHAR(A.LOGON_TIME, 'MM/DD HH24:MI:SS'), 1, 14) AS LOGON_TIME
+
    , USER_CONSTRAINTS B
        ,SUBSTRB(C.OBJECT_NAME, 1, 58) AS OBJECT_NAME
+
    , USER_CONS_COLUMNS C
FROM     V$SESSION A
+
WHERE A.TABLE_NAME = B.TABLE_NAME
        ,V$LOCK B
+
  AND B.CONSTRAINT_NAME = C.CONSTRAINT_NAME
        ,DBA_OBJECTS C
+
  AND B.CONSTRAINT_TYPE = 'P';
WHERE     A.SID = B.SID
+
</source>
AND       B.ID1 = C.OBJECT_ID
 
AND       B.TYPE = 'TM'
 
AND      C.OBJECT_NAME LIKE UPPER('&테이블명');
 
 
  
## 23 Lock을 잡고있는 세션과 기다리는 세션 조회
+
== Index가 없는 Table 조회   ==
+
* DBA_TABLES
SELECT    DECODE(B.LOCKWAIT, NULL, ' ', 'w') AS WW
+
* DBA_INDEXES
        ,B.SID
+
<source lang="sql">
        ,B.SERIAL# AS SER#
+
SELECT OWNER, TABLE_NAME
        ,SUBSTR(B.MACHINE, 1, 10) AS MACHINE
+
FROM (SELECT OWNER
        ,SUBSTR(B.PROGRAM, 1, 15) AS PROGRAM
+
          , TABLE_NAME
        ,SUBSTR(A.OBJECT_NAME, 1, 17) AS OBJ_NAME
+
        FROM DBA_TABLES
        ,SUBSTR(B.STATUS, 1, 1) AS S
+
      MINUS
        ,DECODE(B.COMMAND,  0, NULL,  2, 'INSERT',  6, 'UPDATE',  7, 'DELETE',  B.COMMAND) AS SQLCMD
+
      SELECT TABLE_OWNER
        ,B.PROCESS AS PGM_PSS
+
          , TABLE_NAME
FROM      V$SESSION B
+
        FROM DBA_INDEXES
        ,(SELECT    A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME) AS OBJECT_NAME
+
     )
          FROM      V$LOCK A
+
WHERE OWNER NOT IN ('SYS', 'SYSTEM') ORDER BY OWNER, TABLE_NAME;  
                    ,DBA_OBJECTS B
+
</source>
          WHERE    A.ID1 = B.OBJECT_ID(+)
 
          GROUP BY A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME)) A
 
WHERE    B.SID = A.SID
 
AND      B.TADDR IS NOT NULL;
 
 
  
## 24 테이블에 걸린 비정상적 LOCK 풀기
+
= 락 정보 =
 +
== 테이블에 LOCK이 걸렸는지를 보기  ==
 +
* V$SESSION
 +
* V$LOCK
 +
* DBA_OBJECTS
 +
<source lang="sql">
 +
SELECT A.SID
 +
    , A.SERIAL#
 +
    , SUBSTRB(A.USERNAME, 1, 16) AS USERNAME
 +
    , SUBSTRB(A.MACHINE, 1, 30) AS MACHINE
 +
    , A.TERMINAL
 +
    , A.OSUSER
 +
    , A.PROGRAM
 +
    , SUBSTRB(TO_CHAR(A.LOGON_TIME, 'MM/DD HH24:MI:SS'), 1, 14) AS LOGON_TIME
 +
    , SUBSTRB(C.OBJECT_NAME, 1, 58) AS OBJECT_NAME
 +
  FROM V$SESSION A
 +
    , V$LOCK B
 +
    , DBA_OBJECTS C
 +
WHERE A.SID = B.SID AND B.ID1 = C.OBJECT_ID
 +
  AND B.TYPE = 'TM'
 +
  AND C.OBJECT_NAME LIKE UPPER('&테이블명');
 +
</source>
  
ALTER SYSTEM KILL SESSION '&SID,&SERIAL';
+
== Lock을 잡고있는 세션과 기다리는 세션 조회  ==
+
* V$SESSION  
 +
* V$LOCK
 +
* DBA_OBJECTS
  
## 25 작업 중인 데이터베이스 트랜잭션 조회
+
<source lang="sql">
 +
SELECT DECODE(B.LOCKWAIT, NULL, ' ', 'w') AS WW
 +
    , B.SID
 +
    , B.SERIAL# AS SER#
 +
    , SUBSTR(B.MACHINE, 1, 10) AS MACHINE
 +
    , SUBSTR(B.PROGRAM, 1, 15) AS PROGRAM
 +
    , SUBSTR(A.OBJECT_NAME, 1, 17) AS OBJ_NAME
 +
    , SUBSTR(B.STATUS, 1, 1) AS S
 +
    , DECODE(B.COMMAND,  0, NULL,  2, 'INSERT',  6, 'UPDATE',  7, 'DELETE',  B.COMMAND) AS SQLCMD
 +
    , B.PROCESS AS PGM_PSS
 +
  FROM V$SESSION B
 +
    , ( SELECT A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME) AS OBJECT_NAME
 +
        FROM V$LOCK A
 +
            , DBA_OBJECTS B
 +
        WHERE  A.ID1 = B.OBJECT_ID(+)
 +
        GROUP BY  A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME)
 +
      ) A
 +
WHERE B.SID = A.SID
 +
  AND B.TADDR IS NOT NULL;
 +
</source>
  
SELECT    S.SID
+
== 테이블에 걸린 비정상적 LOCK 풀기  ==
        ,S.SERIAL#
+
<source lang="sql"> ALTER SYSTEM KILL SESSION '&SID,&SERIAL'; </source>
        ,S.STATUS
+
* RAC
        ,S.OSUSER
+
<source lang="sql"> ALTER SYSTEM KILL SESSION '&SID,&SERIAL,@1'; </source>
        ,S.USERNAME
 
        ,T.STATUS
 
        ,T.START_TIME
 
FROM      V$SESSION S
 
        ,V$TRANSACTION T
 
        ,DBA_ROLLBACK_SEGS R
 
WHERE    S.TADDR = T.ADDR
 
AND      T.XIDUSN = R.SEGMENT_ID;
 
 
  
## 26 열려 있는 커서 조회
+
== 작업 중인 데이터베이스 트랜잭션 조회  ==
 +
* V$SESSION
 +
* V$TRANSACTION
 +
* DBA_ROLLBACK_SEGS
 +
<source lang="sql">
 +
SELECT S.SID
 +
    , S.SERIAL#
 +
    , S.STATUS
 +
    , S.OSUSER
 +
    , S.USERNAME
 +
    , T.STATUS
 +
    , T.START_TIME
 +
  FROM V$SESSION S
 +
    , V$TRANSACTION T
 +
    , DBA_ROLLBACK_SEGS R
 +
WHERE S.TADDR = T.ADDR
 +
  AND T.XIDUSN = R.SEGMENT_ID;
 +
</source>
  
SELECT   A.SID
+
== 열려 있는 커서 조회  ==
        ,A.OSUSER
+
* V$SESSION
        ,COUNT(B.SID) AS "CURSOR"
+
* V$OPEN_CURSOR
        ,A.PROGRAM
+
<source lang="sql">
        ,A.STATUS
+
SELECT A.SID
FROM     V$SESSION A
+
    , A.OSUSER
        ,V$OPEN_CURSOR B
+
    , COUNT(B.SID) AS "CURSOR"
WHERE     A.SID = B.SID(+)
+
    , A.PROGRAM
GROUP BY A.SID, A.OSUSER, A.PROGRAM, A.STATUS;
+
    , A.STATUS
+
  FROM V$SESSION A
 +
    , V$OPEN_CURSOR B
 +
WHERE A.SID = B.SID(+)  
 +
GROUP BY A.SID, A.OSUSER, A.PROGRAM, A.STATUS;  
 +
</source>
  
## 27 잠금 발생 유형 조회
+
== 잠금 발생 유형 조회   ==
 +
* V$LOCK
 +
<source lang="sql"> SELECT A.SID
  
SELECT    A.SID
 
 
         ,DECODE(A.TYPE
 
         ,DECODE(A.TYPE
 
                 ,'MR', 'MEDIA RECOVERY'
 
                 ,'MR', 'MEDIA RECOVERY'
475번째 줄: 408번째 줄:
 
         ,TO_CHAR(A.ID2) AS "LOCK_ID2"
 
         ,TO_CHAR(A.ID2) AS "LOCK_ID2"
 
         ,DECODE(BLOCK,  0, 'NOT BLOCKING',  1, 'BLOCKING',  2, 'GLOBAL',  TO_CHAR(BLOCK)) AS "BLOCKING_OTHERS"
 
         ,DECODE(BLOCK,  0, 'NOT BLOCKING',  1, 'BLOCKING',  2, 'GLOBAL',  TO_CHAR(BLOCK)) AS "BLOCKING_OTHERS"
FROM     V$LOCK A
+
 
WHERE     (ID1, ID2) IN (SELECT   B.ID1, ID2
+
FROM V$LOCK A WHERE (ID1, ID2) IN (SELECT B.ID1, ID2
 +
 
 
                         FROM      V$LOCK B
 
                         FROM      V$LOCK B
 
                         WHERE    B.ID1 = A.ID1);
 
                         WHERE    B.ID1 = A.ID1);
  
 +
</source>
  
## 28 잠금 상태 오브젝트 조회
+
== 잠금 상태 오브젝트 조회   ==
 
+
* V$LOCKED_OBJECT
+
* V$SESSION
SELECT   A.SESSION_ID
+
* DBA_OBJECT
        ,B.SERIAL#
+
<source lang="sql">
        ,A.OS_USER_NAME
+
SELECT A.SESSION_ID
        ,A.ORACLE_USERNAME
+
    , B.SERIAL#
        ,C.OBJECT_NAME
+
    , A.OS_USER_NAME
        ,A.LOCKED_MODE
+
    , A.ORACLE_USERNAME
        ,A.XIDUSN
+
    , C.OBJECT_NAME
FROM     V$LOCKED_OBJECT A
+
    , A.LOCKED_MODE
        ,V$SESSION B
+
    , A.XIDUSN
        ,DBA_OBJECTS C
+
  FROM V$LOCKED_OBJECT A
WHERE     A.OBJECT_ID = C.OBJECT_ID
+
      , V$SESSION B
AND       A.SESSION_ID = B.SID;
+
      , DBA_OBJECTS C
+
WHERE A.OBJECT_ID = C.OBJECT_ID AND A.SESSION_ID = B.SID;  
 
+
</source>
## 29 잠금 SQL 구문 조회
 
  
+
== 잠금 SQL 구문 조회  ==
SELECT   B.USERNAME AS USERNAME
+
* V$SQLTEXT
        ,C.SID AS SID
+
* V$SESSION
        ,C.OWNER AS OBJECT_OWNER
+
* V$ACCESS
        ,C.OBJECT AS OBJECT
+
<source lang="sql">
        ,B.LOCKWAIT
+
SELECT B.USERNAME AS USERNAME
        ,A.PIECE
+
    , C.SID AS SID
        ,A.SQL_TEXT AS SQL
+
    , C.OWNER AS OBJECT_OWNER
FROM     V$SQLTEXT A
+
    , C.OBJECT AS OBJECT
        ,V$SESSION B
+
    , B.LOCKWAIT
        ,V$ACCESS C
+
    , A.PIECE
WHERE     A.ADDRESS = B.SQL_ADDRESS
+
    , A.SQL_TEXT AS SQL
AND       A.HASH_VALUE = B.SQL_HASH_VALUE
+
FROM V$SQLTEXT A
AND       B.SID = C.SID
+
    , V$SESSION B
AND       C.OWNER != 'SYS';
+
    , V$ACCESS C
 +
WHERE A.ADDRESS = B.SQL_ADDRESS  
 +
  AND A.HASH_VALUE = B.SQL_HASH_VALUE  
 +
  AND B.SID = C.SID  
 +
  AND C.OWNER!= 'SYS';
 +
</source>
  
 +
== 해당 테이블의 세션을 제거하는 쿼리  ==
 +
* V$LOCK
 +
* DBA_OBJECTS
 +
* V$SESSION
 +
<source lang="sql">
 +
SELECT 'ALTER SYSTEM KILL SESSION '''|| S.SID||','||S.SERIAL# ||''';'
 +
  FROM V$LOCK L, DBA_OBJECTS O, V$SESSION S
 +
WHERE L.ID1 = O.OBJECT_ID
 +
  AND S.SID = L.SID
 +
  AND O.OWNER = 'ESTDBA'
 +
  AND O.OBJECT_NAME = 'TMP_GSYM2'
 +
</source>
  
## 30 해당 테이블의 세션을 제거하는 쿼리
+
== Blocking Lock Session 확인  ==
 +
* V$SQLTEXT
 +
* V$SESSION
 +
* V$ACCESS
 +
<source lang='sql'>
 +
SELECT B.BLOCKING_SESSION AS BLOCKING_SESSION_SID
 +
    , C.SID AS LOCK_SESSION_SID
 +
    , C.OWNER AS OBJECT_OWNER
 +
    , C.OBJECT AS OBJECT
 +
    , B.LOCKWAIT
 +
    , A.PIECE
 +
    , A.SQL_TEXT AS SQL
 +
  FROM V$SQLTEXT A
 +
    , V$SESSION B
 +
    , V$ACCESS C
 +
WHERE A.ADDRESS = B.SQL_ADDRESS
 +
  AND A.HASH_VALUE = B.SQL_HASH_VALUE
 +
  AND B.SID = C.SID
 +
  AND B.BLOCKING_SESSION IS NOT NULL
 +
  AND C.OWNER NOT IN ('SYS', 'PUBLIC')
 +
  AND C.OBJECT NOT IN ('TOAD_PLAN_TABLE')
 +
ORDER BY A.PIECE;
 +
</source>
  
/*
+
= 테이블 정보 =
  특정 테이블이 락을 발생하고 있으면 세션을 찾아서 중단시킨다.
+
== 테이블 생성일자 보기  ==
*/
+
* USER_OBJECTS
SELECT 'ALTER SYSTEM KILL SESSION ''' || S.SID||','||S.SERIAL# ||''';'
+
<source lang="sql">
FROM  V$LOCK L, DBA_OBJECTS O, V$SESSION S
+
SELECT SUBSTRB(OBJECT_NAME, 1, 15) AS OBJECT_NAME
WHERE  L.ID1  = O.OBJECT_ID
+
    , CREATED
AND    S.SID = L.SID
+
    , LAST_DDL_TIME
AND    O.OWNER = 'ESTDBA'
+
    , TIMESTAMP
AND   O.OBJECT_NAME = 'TMP_GSYM2'
+
    , STATUS
+
  FROM USER_OBJECTS
## 31 Blocking Lock Session 확인
+
WHERE OBJECT_NAME = UPPER('&테이블명')
 +
  AND OBJECT_TYPE = 'TABLE';
 +
</source>
  
SELECT    B.BLOCKING_SESSION AS BLOCKING_SESSION_SID
+
== 테이블의 크기 및 블록 보기  ==
        ,C.SID AS LOCK_SESSION_SID
+
* USER_SEGMENTS
        ,C.OWNER AS OBJECT_OWNER
+
<source lang="sql">
        ,C.OBJECT AS OBJECT
+
SELECT SUBSTR(SEGMENT_NAME, 1, 20)
        ,B.LOCKWAIT
+
    , BYTES
        ,A.PIECE
+
    , BLOCKS
        ,A.SQL_TEXT AS SQL
+
  FROM USER_SEGMENTS
FROM     V$SQLTEXT A
+
WHERE SEGMENT_NAME = UPPER('&테이블명');
        ,V$SESSION B
+
</source>
        ,V$ACCESS C
 
WHERE     A.ADDRESS = B.SQL_ADDRESS
 
AND      A.HASH_VALUE = B.SQL_HASH_VALUE
 
AND      B.SID = C.SID
 
AND      B.BLOCKING_SESSION IS NOT NULL
 
AND      C.OWNER NOT IN ('SYS', 'PUBLIC')
 
AND      C.OBJECT NOT IN ('TOAD_PLAN_TABLE')
 
ORDER BY  A.PIECE;
 
  
 +
== 파티션 테이블의 파티션 범위 보기  ==
 +
* USER_TAB_PARTITIONS
 +
<source lang="sql">
 +
SELECT SUBSTRB(PARTITION_NAME, 1, 30) AS PARTITION_NAME, SUBSTRB(TABLESPACE_NAME, 1, 30) AS TABLESPACE_NAME, HIGH_VALUE
 +
  FROM USER_TAB_PARTITIONS
 +
WHERE TABLE_NAME = UPPER('&테이블명');
 +
</source>
  
# 5. 테이블 정보
+
== CONSTRAINT 보기  ==
----
+
* DBA_CONSTRAINTS
 +
* DBA_CONS_COLUMNS
 +
<source lang="sql">
 +
SELECT DECODE(A.CONSTRAINT_TYPE, 'P', 'Primary Key', 'R', 'Foreign Key', 'C', 'Table Check', 'V', 'View Check', 'U', 'Unique', '?')            AS "유형"
 +
    , SUBSTRB(A.CONSTRAINT_NAME, 1, 25) AS CONSTRAINT_NAME
 +
    , B.POSITION
 +
    , SUBSTRB(B.COLUMN_NAME, 1, 25) AS COLUMN_NAME
 +
FROM DBA_CONSTRAINTS A
 +
    , DBA_CONS_COLUMNS B
 +
WHERE A.CONSTRAINT_NAME = B.CONSTRAINT_NAME
 +
  AND A.OWNER = 'E_LUCIS'
 +
  AND A.TABLE_NAME = UPPER('&테이블명') ORDER BY 1, 2, 3;
 +
</source>
  
## 32 테이블 생성일자 보기
+
== 특정 테이블의 스키마 구조 확인  ==
   
+
=== DBA 용 ===
SELECT    SUBSTRB(OBJECT_NAME, 1, 15) AS OBJECT_NAME
+
* DBA_TAB_COLUMNS
        ,CREATED
+
* DBA_COL_COMMENTS
        ,LAST_DDL_TIME
+
* DBA_CONS_COLUMNS
        ,TIMESTAMP
+
<source lang="sql">
        ,STATUS
 
FROM      USER_OBJECTS
 
WHERE    OBJECT_NAME = UPPER('&테이블명')
 
AND      OBJECT_TYPE = 'TABLE';
 
 
  
## 33 테이블의 크기 및 블록 보기
+
SELECT OWNER
 +
    , TABLE_NAME
 +
    , COLUMN_NAME
 +
    , PK
 +
    , COLUMN_NAME
 +
    , DATA_TYPE || '( ' || NVL(DATA_TYPE_2, DATA_LENGTH) || ' )' DATA_TYPE
 +
    , NULLABLE
 +
    , COMMENTS
 +
  FROM (SELECT A.OWNER
 +
            , A.TABLE_NAME
 +
            , A.COLUMN_ID
 +
            , B.POSITION PK
 +
            , A.COLUMN_NAME
 +
            , A.DATA_TYPE
 +
            , A.DATA_PRECISION || DECODE(A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE) DATA_TYPE_2
 +
            , A.DATA_LENGTH
 +
            , A.DATA_PRECISION
 +
            , A.DATA_SCALE
 +
            , A.NULLABLE
 +
            , A.COMMENTS
 +
            , ROW_NUMBER() OVER (PARTITION BY A.OWNER, A.TABLE_NAME, A.COLUMN_ID ORDER BY A.COLUMN_ID, B.POSITION) RN
 +
          FROM (SELECT COL.OWNER
 +
                    , COL.TABLE_NAME
 +
                    , COL.COLUMN_ID
 +
                    , COL.COLUMN_NAME
 +
                    , COL.DATA_TYPE
 +
                    , COL.DATA_LENGTH
 +
                    , COL.DATA_PRECISION
 +
                    , COL.DATA_SCALE
 +
                    , COL.NULLABLE
 +
                    , COM.COMMENTS
 +
                  FROM DBA_TAB_COLUMNS COL
 +
                    , DBA_COL_COMMENTS COM
 +
                WHERE COL.COLUMN_NAME = COM.COLUMN_NAME
 +
                  AND COL.OWNER = COM.OWNER
 +
                  AND COL.TABLE_NAME = COM.TABLE_NAME
 +
                  AND COM.OWNER =:IN_OWNER
 +
                  AND COM.TABLE_NAME LIKE:IN_TABLE_NAME || '%'
 +
              ) A
 +
              , DBA_CONS_COLUMNS B
 +
          WHERE B.TABLE_NAME(+) = A.TABLE_NAME
 +
            AND B.COLUMN_NAME(+) = A.COLUMN_NAME) X
 +
WHERE X.RN = 1 ORDER BY X.TABLE_NAME, X.COLUMN_ID; </source>
  
SELECT    SUBSTR(SEGMENT_NAME, 1, 20), BYTES, BLOCKS
+
=== 일반 사용자 용 ===
FROM     USER_SEGMENTS
+
 
WHERE    SEGMENT_NAME = UPPER('&테이블명');
+
<source lang="sql">
 +
  SELECT TABLE_NAME
 +
      , COLUMN_NAME
 +
      , PK
 +
      , COLUMN_NAME
 +
      , DATA_TYPE || '( ' || NVL (DATA_TYPE_2, DATA_LENGTH) || ' )'   DATA_TYPE
 +
      , NULLABLE
 +
      , COMMENTS
 +
    FROM (SELECT A.TABLE_NAME
 +
              , A.COLUMN_ID
 +
              , B.POSITION                                                  PK
 +
              , A.COLUMN_NAME
 +
              , A.DATA_TYPE
 +
              ,    A.DATA_PRECISION
 +
                || DECODE (A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE)    DATA_TYPE_2
 +
              , A.DATA_LENGTH
 +
              , A.DATA_PRECISION
 +
              , A.DATA_SCALE
 +
              , A.NULLABLE
 +
              , A.COMMENTS
 +
              , ROW_NUMBER ()
 +
                    OVER (PARTITION BY A.TABLE_NAME, A.COLUMN_ID
 +
                          ORDER BY A.COLUMN_ID, B.POSITION)                 RN
 +
            FROM (SELECT COL.TABLE_NAME
 +
                      , COL.COLUMN_ID
 +
                      , COL.COLUMN_NAME
 +
                      , COL.DATA_TYPE
 +
                      , COL.DATA_LENGTH
 +
                      , COL.DATA_PRECISION
 +
                      , COL.DATA_SCALE
 +
                      , COL.NULLABLE
 +
                      , COM.COMMENTS
 +
                    FROM USER_TAB_COLUMNS COL, USER_COL_COMMENTS COM
 +
                  WHERE    COL.COLUMN_NAME = COM.COLUMN_NAME
 +
                        AND COL.TABLE_NAME = COM.TABLE_NAME
 +
                        AND COM.TABLE_NAME LIKE :IN_TABLE_NAME || '%') A
 +
              , USER_CONS_COLUMNS B
 +
          WHERE    B.TABLE_NAME(+) = A.TABLE_NAME
 +
                AND B.COLUMN_NAME(+) = A.COLUMN_NAME) X
 +
  WHERE X.RN = 1
 +
ORDER BY X.TABLE_NAME, X.COLUMN_ID;
 +
</source>
  
## 34 파티션 테이블의 파티션 범위 보기
+
== 사용자별 오브젝트 수  ==
 +
* DBA_OBJECTS
 +
<source lang="sql">
 +
  SELECT OWNER                                                AS "OWNER"
 +
      , SUM (DECODE (OBJECT_TYPE, 'TABLE', 1, 0))            AS "TABLE"
 +
      , SUM (DECODE (OBJECT_TYPE, 'INDEX', 1, 0))            AS "INDEX"
 +
      , SUM (DECODE (OBJECT_TYPE, 'SYNONYM', 1, 0))          AS "SYNONYMS"
 +
      , SUM (DECODE (OBJECT_TYPE, 'SEQUENCE', 1, 0))        AS "SEQUENCES"
 +
      , SUM (DECODE (OBJECT_TYPE, 'VIEW', 1, 0))            AS "VIEWS"
 +
      , SUM (DECODE (OBJECT_TYPE, 'CLUSTER', 1, 0))          AS "CLUSTERS"
 +
      , SUM (DECODE (OBJECT_TYPE, 'DATABASE LINK', 1, 0))    AS "DBLINKS"
 +
      , SUM (DECODE (OBJECT_TYPE, 'PACKAGE', 1, 0))          AS "PACKAGES"
 +
      , SUM (DECODE (OBJECT_TYPE, 'PACKAGE BODY', 1, 0))    AS "PACKAGE_BODY"
 +
      , SUM (DECODE (OBJECT_TYPE, 'PROCEDURE', 1, 0))        AS "PROCEDURES"
 +
      , SUM (DECODE (OBJECT_TYPE, 'FUNCTION', 1, 0))        AS "FUNCTION"
 +
    FROM DBA_OBJECTS
 +
GROUP BY OWNER;
 +
</source>
  
SELECT    SUBSTRB(PARTITION_NAME, 1, 30) AS PARTITION_NAME, SUBSTRB(TABLESPACE_NAME, 1, 30) AS TABLESPACE_NAME, HIGH_VALUE
+
= 모니터링 =
FROM      USER_TAB_PARTITIONS
 
WHERE    TABLE_NAME = UPPER('&테이블명');
 
  
 +
----
  
## 35 CONSTRAINT 보기
 
  
SELECT   DECODE(A.CONSTRAINT_TYPE, 'P', 'Primary Key', 'R', 'Foreign Key',  'C', 'Table Check',  'V', 'View Check',  'U', 'Unique',  '?')
+
== 연결되어 있는 OS 사용자 및 프로그램 조회  ==
            AS "유형"
+
* V$SESSION
        ,SUBSTRB(A.CONSTRAINT_NAME, 1, 25) AS CONSTRAINT_NAME
+
<source lang="sql">
        ,B.POSITION
+
SELECT SID
        ,SUBSTRB(B.COLUMN_NAME, 1, 25) AS COLUMN_NAME
+
    , SERIAL#
FROM     DBA_CONSTRAINTS A
+
    , OSUSER
        ,DBA_CONS_COLUMNS B
+
    , SUBSTRB(USERNAME, 1, 10) AS USER_NAME
WHERE     A.CONSTRAINT_NAME = B.CONSTRAINT_NAME
+
    , SUBSTRB(PROGRAM, 1, 30) AS PROGRAM_NAME
AND       A.OWNER = 'E_LUCIS'
+
    , STATUS
AND      A.TABLE_NAME = UPPER('&테이블명')
+
    , TO_CHAR(LOGON_TIME, 'YYYY/MM/DD HH:MI') AS LOGON_TIME
ORDER BY  1, 2, 3;
+
  FROM V$SESSION WHERE TYPE!= ‘BACKGROUND’ AND STATUS = ‘ACTIVE’;
 +
</source>
  
## 36 특정 테이블의 스키마 구조 확인
+
== 1시간 이상 유휴 상태인 세션  ==
 
/*
 
    보통 토드나 기타 오라클 클라이언트 툴을 이용해서 테이블 구조를 확인 해도 됩니다.
 
    하지만 수많은 테이블을 전체 보고 싶을 경우 아래 쿼리를 이용하면 한번에 확인이 가능합니다.
 
*/
 
 
 
--: 관리자용
 
SELECT    OWNER
 
        ,TABLE_NAME
 
        ,COLUMN_NAME
 
        ,PK
 
        ,COLUMN_NAME
 
        ,DATA_TYPE || '( ' || NVL(DATA_TYPE_2, DATA_LENGTH) || ' )' DATA_TYPE
 
        ,NULLABLE
 
        ,COMMENTS
 
FROM      (SELECT    A.OWNER
 
                    ,A.TABLE_NAME
 
                    ,A.COLUMN_ID
 
                    ,B.POSITION PK
 
                    ,A.COLUMN_NAME
 
                    ,A.DATA_TYPE
 
                    ,A.DATA_PRECISION || DECODE(A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE) DATA_TYPE_2
 
                    ,A.DATA_LENGTH
 
                    ,A.DATA_PRECISION
 
                    ,A.DATA_SCALE
 
                    ,A.NULLABLE
 
                    ,A.COMMENTS
 
                    ,ROW_NUMBER() OVER (PARTITION BY A.OWNER, A.TABLE_NAME, A.COLUMN_ID ORDER BY A.COLUMN_ID, B.POSITION) RN
 
          FROM      (SELECT    COL.OWNER
 
                              ,COL.TABLE_NAME
 
                              ,COL.COLUMN_ID
 
                              ,COL.COLUMN_NAME
 
                              ,COL.DATA_TYPE
 
                              ,COL.DATA_LENGTH
 
                              ,COL.DATA_PRECISION
 
                              ,COL.DATA_SCALE
 
                              ,COL.NULLABLE
 
                              ,COM.COMMENTS
 
                      FROM      DBA_TAB_COLUMNS COL
 
                              ,DBA_COL_COMMENTS COM
 
                      WHERE    COL.COLUMN_NAME = COM.COLUMN_NAME
 
                      AND      COL.OWNER = COM.OWNER
 
                      AND      COL.TABLE_NAME = COM.TABLE_NAME
 
                      AND      COM.OWNER = :IN_OWNER
 
                      AND      COM.TABLE_NAME LIKE :IN_TABLE_NAME || '%') A
 
                    ,DBA_CONS_COLUMNS B
 
          WHERE    B.TABLE_NAME(+) = A.TABLE_NAME
 
          AND      B.COLUMN_NAME(+) = A.COLUMN_NAME) X
 
WHERE    X.RN = 1
 
ORDER BY  X.TABLE_NAME, X.COLUMN_ID;
 
 
 
 
--: 일반 사용자 용
 
 
SELECT    TABLE_NAME
 
        ,COLUMN_NAME
 
        ,PK
 
        ,COLUMN_NAME
 
        ,DATA_TYPE || '( ' || NVL(DATA_TYPE_2, DATA_LENGTH) || ' )' DATA_TYPE
 
        ,NULLABLE
 
        ,COMMENTS
 
FROM      (SELECT    A.TABLE_NAME
 
                    ,A.COLUMN_ID
 
                    ,B.POSITION PK
 
                    ,A.COLUMN_NAME
 
                    ,A.DATA_TYPE
 
                    ,A.DATA_PRECISION || DECODE(A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE) DATA_TYPE_2
 
                    ,A.DATA_LENGTH
 
                    ,A.DATA_PRECISION
 
                    ,A.DATA_SCALE
 
                    ,A.NULLABLE
 
                    ,A.COMMENTS
 
                    ,ROW_NUMBER() OVER (PARTITION BY A.TABLE_NAME, A.COLUMN_ID ORDER BY A.COLUMN_ID, B.POSITION) RN
 
          FROM      (SELECT    COL.TABLE_NAME
 
                              ,COL.COLUMN_ID
 
                              ,COL.COLUMN_NAME
 
                              ,COL.DATA_TYPE
 
                              ,COL.DATA_LENGTH
 
                              ,COL.DATA_PRECISION
 
                              ,COL.DATA_SCALE
 
                              ,COL.NULLABLE
 
                              ,COM.COMMENTS
 
                      FROM      USER_TAB_COLUMNS COL
 
                              ,USER_COL_COMMENTS COM
 
                      WHERE    COL.COLUMN_NAME = COM.COLUMN_NAME
 
                      AND      COL.TABLE_NAME = COM.TABLE_NAME
 
                      AND      COM.TABLE_NAME LIKE :IN_TABLE_NAME || '%') A
 
                    ,USER_CONS_COLUMNS B
 
          WHERE    B.TABLE_NAME(+) = A.TABLE_NAME
 
          AND      B.COLUMN_NAME(+) = A.COLUMN_NAME) X
 
WHERE    X.RN = 1
 
ORDER BY  X.TABLE_NAME, X.COLUMN_ID;
 
 
 
## 37 사용자별 오브젝트 수
 
  
SELECT    OWNER AS "OWNER"
+
<source lang="sql">
        ,SUM(DECODE(OBJECT_TYPE, 'TABLE', 1, 0)) AS "TABLE"
+
SELECT SID
        ,SUM(DECODE(OBJECT_TYPE, 'INDEX', 1, 0)) AS "INDEX"
+
    , SERIAL#
        ,SUM(DECODE(OBJECT_TYPE, 'SYNONYM', 1, 0)) AS "SYNONYMS"
+
    , USERNAME
        ,SUM(DECODE(OBJECT_TYPE, 'SEQUENCE', 1, 0)) AS "SEQUENCES"
+
    , TRUNC(LAST_CALL_ET / 3600, 2) || ' HR' LAST_CALL_ET
        ,SUM(DECODE(OBJECT_TYPE, 'VIEW', 1, 0)) AS "VIEWS"
+
  FROM V$SESSION
        ,SUM(DECODE(OBJECT_TYPE, 'CLUSTER', 1, 0)) AS "CLUSTERS"
+
  WHERE LAST_CALL_ET > 3600
        ,SUM(DECODE(OBJECT_TYPE, 'DATABASE LINK', 1, 0)) AS "DBLINKS"
+
  AND USERNAME IS NOT NULL;  
        ,SUM(DECODE(OBJECT_TYPE, 'PACKAGE', 1, 0)) AS "PACKAGES"
+
</source>
        ,SUM(DECODE(OBJECT_TYPE, 'PACKAGE BODY', 1, 0)) AS "PACKAGE_BODY"
 
        ,SUM(DECODE(OBJECT_TYPE, 'PROCEDURE', 1, 0)) AS "PROCEDURES"
 
        ,SUM(DECODE(OBJECT_TYPE, 'FUNCTION', 1, 0)) AS "FUNCTION"
 
FROM     DBA_OBJECTS
 
GROUP BY OWNER;
 
 
 
# 7. 모니터링
 
----
 
  
## 38 연결되어 있는 OS 사용자 및 프로그램 조회
+
== Active Session 중 Idle Time이 긴 작업  ==
+
* V$SESSION
SELECT   SID
+
* V$PROCESS
        ,SERIAL#
+
<source lang="sql">
        ,OSUSER
+
SELECT VS.SID || ',' || VS.SERIAL# " SID"
        ,SUBSTRB(USERNAME, 1, 10) AS USER_NAME
+
    , VP.SPID
        ,SUBSTRB(PROGRAM, 1, 30) AS PROGRAM_NAME
+
    , VS.MACHINE
        ,STATUS
+
    , VS.PROGRAM
        ,TO_CHAR(LOGON_TIME, 'YYYY/MM/DD HH:MI') AS LOGON_TIME
+
    , VS.MODULE
FROM      V$SESSION
+
    , VS.STATUS
WHERE     TYPE != ‘BACKGROUND’
+
    , TO_CHAR(VS.LOGON_TIME, 'MM/DD HH24:MI') LOGIN_TIME
AND       STATUS = ‘ACTIVE’;
+
    , ROUND(VS.LAST_CALL_ET / 60) "IDLE"
   
+
  FROM V$SESSION VS
## 39 1시간 이상 유휴 상태인 세션
+
     , V$PROCESS VP
 +
WHERE VS.STATUS = 'ACTIVE'
 +
  AND VS.SID NOT IN (1, 2, 3, 4, 5, 6, 7)
 +
  AND VS.PADDR = VP.ADDR
 +
  ORDER BY 8;
 +
</source>
  
SELECT   SID
+
== DBUser 별로 Session 정보를 조회  ==
        ,SERIAL#
+
<source lang="sql">
        ,USERNAME
+
SELECT S.USERNAME
        ,TRUNC(LAST_CALL_ET / 3600, 2) || ' HR' LAST_CALL_ET
+
    , S.SID
FROM      V$SESSION
+
    , S.SERIAL#
WHERE     LAST_CALL_ET > 3600
+
    , P.SPID
AND       USERNAME IS NOT NULL;
+
    , S.OSUSER
 +
    , S.MACHINE
 +
    , S.PROGRAM
 +
    , TO_CHAR(S.LOGON_TIME, 'MM/DD HH24:MI') "LOGON_TIME"
 +
    , ROUND(S.LAST_CALL_ET / 60) "IDLE"
 +
  FROM V$SESSION S
 +
     , V$PROCESS P
 +
WHERE S.PADDR = P.ADDR AND S.USERNAME LIKE UPPER('&DBUSER%')
 +
ORDER BY 9;  
 +
</source>
  
## 40 Active Session 중 Idle Time이 긴 작업
+
== Session별 사용 명령어  ==
 +
* V$SESSION
 +
* V$SESSTAT
 +
* V$STATNAME
 +
* V$PROCESS
  
+
<source lang="sql">
SELECT    VS.SID || ',' || VS.SERIAL# " SID"
 
        ,VP.SPID
 
        ,VS.MACHINE
 
        ,VS.PROGRAM
 
        ,VS.MODULE
 
        ,VS.STATUS
 
        ,TO_CHAR(VS.LOGON_TIME, 'MM/DD HH24:MI') LOGIN_TIME
 
        ,ROUND(VS.LAST_CALL_ET / 60) "IDLE"
 
FROM      V$SESSION VS
 
        ,V$PROCESS VP
 
WHERE    VS.STATUS = 'ACTIVE'
 
AND      VS.SID NOT IN (1, 2, 3, 4, 5, 6, 7)
 
AND      VS.PADDR = VP.ADDR
 
ORDER BY  8;
 
 
  
## 41 DBUser 별로 Session 정보를 조회
+
SELECT SESS.SID
  
 
SELECT    S.USERNAME
 
        ,S.SID
 
        ,S.SERIAL#
 
        ,P.SPID
 
        ,S.OSUSER
 
        ,S.MACHINE
 
        ,S.PROGRAM
 
        ,TO_CHAR(S.LOGON_TIME, 'MM/DD HH24:MI') "LOGON_TIME"
 
        ,ROUND(S.LAST_CALL_ET / 60) "IDLE"
 
FROM      V$SESSION S
 
        ,V$PROCESS P
 
WHERE    S.PADDR = P.ADDR
 
AND      S.USERNAME LIKE UPPER('&DBUSER%')
 
ORDER BY  9;
 
 
## 42 Session별 사용 명령어
 
 
 
SELECT    SESS.SID
 
 
         ,SESS.SERIAL#
 
         ,SESS.SERIAL#
 
         ,SUBSTR(SESS.USERNAME, 1, 10) "USER NAME"
 
         ,SUBSTR(SESS.USERNAME, 1, 10) "USER NAME"
864번째 줄: 821번째 줄:
 
         ,PROC.SPID "S.PROC"
 
         ,PROC.SPID "S.PROC"
 
         ,TO_CHAR(SESS.LOGON_TIME, 'YYYY-MM-DD HH24:MI')
 
         ,TO_CHAR(SESS.LOGON_TIME, 'YYYY-MM-DD HH24:MI')
FROM      V$SESSION SESS
 
        ,V$SESSTAT STAT
 
        ,V$STATNAME NAME
 
        ,V$PROCESS PROC
 
WHERE    SESS.SID = STAT.SID
 
AND      STAT.STATISTIC# = NAME.STATISTIC#
 
AND      SESS.USERNAME IS NOT NULL
 
AND      NAME.NAME = 'RECURSIVE CALLS'
 
AND      SESS.PADDR = PROC.ADDR
 
ORDER BY  3, 1, 2;
 
  
## 43 사용자 session 중에서 2시간 이상 idle 상태가 지속되는 session을 kill
+
FROM V$SESSION SESS
 +
    , V$SESSTAT STAT
 +
    , V$STATNAME NAME
 +
    , V$PROCESS PROC
 +
WHERE SESS.SID = STAT.SID AND STAT.STATISTIC# = NAME.STATISTIC# AND SESS.USERNAME IS NOT NULL AND NAME.NAME = 'RECURSIVE CALLS' AND SESS.PADDR = PROC.ADDR ORDER BY 3, 1, 2; </source>
  
SET PAGESIZE 0
+
== 사용자 session 2시간 이상 idle 상태가 지속되는 session kill  ==
SPOOL KILLIDLE3.SQL
+
* V$SESSION  
+
* V$PROCESS
SELECT    DISTINCT '!KILL -9 ' || B.SPID, 'ALTER SYSTEM KILL SESSION ''' || A.SID || ',' || A.SERIAL# || ''' ;'
+
<source lang="sql">  
FROM      V$SESSION A
+
SET PAGESIZE 0 SPOOL KILLIDLE3.SQL
        ,V$PROCESS B
 
WHERE    A.PADDR IN (SELECT    S.PADDR
 
                      FROM      V$SESSION S
 
                      WHERE    STATUS = 'INACTIVE'
 
                      GROUP BY  S.PADDR
 
                      HAVING    MIN(ROUND(LAST_CALL_ET / 60)) > 120)
 
AND      A.PADDR = B.ADDR
 
AND      A.STATUS = 'INACTIVE';
 
 
SPOOL OFF
 
  
## 44 Oracle Process의 정보
+
SELECT DISTINCT '!KILL -9 ' || B.SPID, 'ALTER SYSTEM KILL SESSION '''|| A.SID || ',' || A.SERIAL# || ''';'
 +
  FROM V$SESSION A
 +
    , V$PROCESS B
 +
WHERE A.PADDR IN (SELECT S.PADDR
 +
                    FROM V$SESSION S
 +
                    WHERE STATUS = 'INACTIVE'
 +
                    GROUP BY  S.PADDR
 +
                  HAVING MIN(ROUND(LAST_CALL_ET / 60)) > 120)
 +
  AND A.PADDR = B.ADDR
 +
  AND A.STATUS = 'INACTIVE';
  
SELECT   S.STATUS "STATUS"
+
SPOOL OFF
 +
</source>
 +
 
 +
== Oracle Process의 정보  ==
 +
* V$SESSION
 +
* V$PROCESS
 +
* SYS.V_$SESS_IO
 +
<source lang="sql">
 +
SELECT S.STATUS "STATUS"
 
         ,S.SERIAL# "SERIAL#"
 
         ,S.SERIAL# "SERIAL#"
 
         ,S.TYPE "TYPE"
 
         ,S.TYPE "TYPE"
921번째 줄: 879번째 줄:
 
         ,S.SQL_HASH_VALUE "SQL HASH"
 
         ,S.SQL_HASH_VALUE "SQL HASH"
 
         ,S.ACTION
 
         ,S.ACTION
FROM     V$SESSION S
+
  FROM V$SESSION S
        ,V$PROCESS P
+
    , V$PROCESS P
        ,SYS.V_$SESS_IO SI
+
    , SYS.V_$SESS_IO SI
WHERE     S.PADDR = P.ADDR(+)
+
WHERE S.PADDR = P.ADDR(+)
AND       SI.SID(+) = S.SID
+
  AND SI.SID(+) = S.SID  
AND       S.USERNAME IS NOT NULL
+
  AND S.USERNAME IS NOT NULL  
AND       NVL(S.OSUSER, 'X') <> 'SYSTEM'
+
  AND NVL(S.OSUSER, 'X') <> 'SYSTEM'  
AND       S.TYPE <> 'BACKGROUND'
+
  AND S.TYPE <> 'BACKGROUND'  
ORDER BY 3;
+
ORDER BY 3;  
 +
</source>
  
## 45 오브젝트에 접속되어 있는 프로그램 조회
+
== 오브젝트에 접속되어 있는 프로그램 조회   ==
 +
* V$SESSION
 +
* V$ACCESS
 +
<source lang="sql">
 +
SELECT SUBSTR(B.OBJECT, 1, 15) AS OBJECT, SUBSTR(A.PROGRAM, 1, 15) AS PROGRAM, COUNT(*) AS CNT
 +
  FROM V$SESSION A
 +
      ,V$ACCESS B
 +
WHERE A.SID = B.SID
 +
  AND B.OWNER NOT IN ('SYS')
 +
  AND A.TYPE!= 'BACKGROUND'
 +
  AND B.OBJECT LIKE UPPER('&OBJECT_NAME') || '%' GROUP BY B.OBJECT, SUBSTR(A.PROGRAM, 1, 15); </source>
  
+
== 롤백 세그먼트 경합 조회  ==
SELECT   SUBSTR(B.OBJECT, 1, 15) AS OBJECT, SUBSTR(A.PROGRAM, 1, 15) AS PROGRAM, COUNT(*) AS CNT
+
* V$ROLLSTAT
FROM     V$SESSION A
+
* V$ROLLNAME
        ,V$ACCESS B
+
<source lang="sql">
WHERE     A.SID = B.SID
+
SELECT NAME T0
AND      B.OWNER NOT IN ('SYS')
+
    , GETS T1        ,WAITS T2
AND      A.TYPE != 'BACKGROUND'
+
    , TO_CHAR(TRUNC(WAITS / GETS * 100, 2), 099.99) || '%' T3
AND      B.OBJECT LIKE UPPER('&OBJECT_NAME') || '%'
+
    , TO_CHAR(ROUND(RSSIZE / 1024)) T4
GROUP BY  B.OBJECT, SUBSTR(A.PROGRAM, 1, 15);
+
    , SHRINKS T5
+
    , EXTENDS T6
 +
  FROM V$ROLLSTAT
 +
    , V$ROLLNAME
 +
WHERE V$ROLLSTAT.USN = V$ROLLNAME.USN;
 +
</source>
  
## 46 롤백 세그먼트 경합 조회
+
== CPU를 많이 사용하는 세션의 식별  ==
 +
* V$SESSTAT
 +
* V$STATNAME
 +
* V$SESSION
 +
<source lang="sql">
 +
SELECT A.SID
 +
    , C.SERIAL#
 +
    , A.VALUE
 +
    , C.USERNAME
 +
    , C.STATUS
 +
    , C.PROGRAM
 +
  FROM V$SESSTAT A
 +
    , V$STATNAME B
 +
    , V$SESSION C
 +
WHERE A.STATISTIC# = B.STATISTIC#
 +
  AND A.SID = C.SID
 +
  AND B.NAME = 'CPU used by this session'
 +
  AND A.VALUE > 0 ORDER BY A.VALUE DESC;
 +
</source>
  
+
== Disk Read 가 많은 SQL문 찾기  ==
SELECT    NAME T0
+
* V$SQLAREA
        ,GETS T1
+
<source lang="sql">
        ,WAITS T2
+
SELECT DISK_READS, SQL_TEXT
        ,TO_CHAR(TRUNC(WAITS / GETS * 100, 2), 099.99) || ' %' T3
+
  FROM V$SQLAREA
        ,TO_CHAR(ROUND(RSSIZE / 1024)) T4
+
WHERE DISK_READS > 100
        ,SHRINKS T5
+
ORDER BY DISK_READS DESC; </source>
        ,EXTENDS T6
 
FROM     V$ROLLSTAT
 
        ,V$ROLLNAME
 
WHERE    V$ROLLSTAT.USN = V$ROLLNAME.USN;
 
 
  
## 46 CPU를 많이 사용하는 세션의 식별
+
== Rollback Segment를 사용하고 있는 SQL문 조회  ==
 +
* V$ROLLNAME
 +
* V$ROLLSTAT
 +
* V$SESSION
 +
* V$SQLTEXT
 +
* V$TRANSACTION
 +
<source lang="sql">
 +
SELECT A.NAME
 +
    , B.XACTS
 +
    , C.SID
 +
    , C.SERIAL#
 +
    , C.USERNAME
 +
    , D.SQL_TEXT
 +
  FROM V$ROLLNAME A
 +
    , V$ROLLSTAT B
 +
    , V$SESSION C
 +
    , V$SQLTEXT D
 +
    , V$TRANSACTION E
 +
WHERE A.USN = B.USN
 +
  AND B.USN = E.XIDUSN
 +
  AND C.TADDR = E.ADDR
 +
  AND C.SQL_ADDRESS = D.ADDRESS
 +
  AND C.SQL_HASH_VALUE = D.HASH_VALUE
 +
ORDER BY A.NAME, C.SID, D.PIECE;
 +
</source>
  
+
== 오래도록 수행되는 Full Table Scan를 모니터링  ==
SELECT   A.SID
+
* V$SESSION_LONGOPS
        ,C.SERIAL#
+
<source lang="sql">
        ,A.VALUE
+
SELECT SID
        ,C.USERNAME
+
    , SERIAL#
        ,C.STATUS
+
    , OPNAME
        ,C.PROGRAM
+
    , TO_CHAR(START_TIME, 'HH24:MI:SS') AS "START"
FROM     V$SESSTAT A
+
    , (SOFAR / TOTALWORK) * 100 AS "PERCENT_COMPLETE"
        ,V$STATNAME B
+
  FROM V$SESSION_LONGOPS;
        ,V$SESSION C
+
</source>
WHERE    A.STATISTIC# = B.STATISTIC#
 
AND      A.SID = C.SID
 
AND      B.NAME = 'CPU used by this session'
 
AND      A.VALUE > 0
 
ORDER BY  A.VALUE DESC;
 
 
  
## 47 Disk Read 가 많은 SQL문 찾기
+
== System 테이블스페이스에 비시스템 세그먼트 조회  ==
 +
* DBA_SEGMENTS
 +
<source lang="sql">
 +
SELECT OWNER
 +
    , SEGMENT_NAME
 +
    , SEGMENT_TYPE
 +
    , TABLESPACE_NAME
 +
  FROM DBA_SEGMENTS
 +
WHERE OWNER NOT IN ('SYS', 'SYSTEM')
 +
  AND TABLESPACE_NAME = 'SYSTEM';
 +
</source>
  
+
== 인덱스의 Delete Space 조회  ==
SELECT   DISK_READS, SQL_TEXT
+
* INDEX_STATS
FROM     V$SQLAREA
+
<source lang="sql">
WHERE    DISK_READS > 100
+
--Delete Space% 값이 20% 가 넘으면, 그 인덱스는 다시 작성하는 것이 좋다.
ORDER BY  DISK_READS DESC;
+
SELECT NAME
+
    , LF_ROWS
 +
     , DEL_LF_ROWS
 +
    , (DEL_LF_ROWS / LF_ROWS) * 100 AS "DELETE SPACE%"
 +
  FROM INDEX_STATS WHERE NAME = UPPER('&INDEX_NAME');  
 +
</source>
  
## 48 Rollback Segment를 사용하고 있는 SQL문 조회
+
== 딕셔너리/뷰 정보 조회   ==
+
* DICTIONARY
SELECT   A.NAME
+
* DICT_COLUMNS
        ,B.XACTS
+
<source lang="sql">
        ,C.SID
+
SELECT A.TABLE_NAME
        ,C.SERIAL#
+
    , B.COLUMN_NAME
        ,C.USERNAME
+
  FROM DICTIONARY A
        ,D.SQL_TEXT
+
    , DICT_COLUMNS B
FROM     V$ROLLNAME A
+
WHERE A.TABLE_NAME = B.TABLE_NAME;
        ,V$ROLLSTAT B
+
</source>
        ,V$SESSION C
 
        ,V$SQLTEXT D
 
        ,V$TRANSACTION E
 
WHERE     A.USN = B.USN
 
AND      B.USN = E.XIDUSN
 
AND      C.TADDR = E.ADDR
 
AND      C.SQL_ADDRESS = D.ADDRESS
 
AND      C.SQL_HASH_VALUE = D.HASH_VALUE
 
ORDER BY  A.NAME, C.SID, D.PIECE;
 
 
 
  
## 49 오래도록 수행되는 Full Table Scan를 모니터링
+
= 프로시져/패키지 =
 
SELECT    SID
 
        ,SERIAL#
 
        ,OPNAME
 
        ,TO_CHAR(START_TIME, 'HH24:MI:SS') AS "START"
 
        ,(SOFAR / TOTALWORK) * 100 AS "PERCENT_COMPLETE"
 
FROM      V$SESSION_LONGOPS;
 
 
  
## 50 System 테이블스페이스에 비시스템 세그먼트 조회
+
----
 
SELECT    OWNER
 
        ,SEGMENT_NAME
 
        ,SEGMENT_TYPE
 
        ,TABLESPACE_NAME
 
FROM      DBA_SEGMENTS
 
WHERE    OWNER NOT IN ('SYS', 'SYSTEM')
 
AND      TABLESPACE_NAME = 'SYSTEM';
 
 
  
## 51 인덱스의 Delete Space 조회
 
  
+
== 패키지 검색 1 - 특정 오라클 사용자 중에서 패키지 소스와 일치하는 텍스트를 조회  ==
SELECT    NAME
 
        ,LF_ROWS
 
        ,DEL_LF_ROWS
 
        ,(DEL_LF_ROWS / LF_ROWS) * 100 AS "DELETE SPACE %"
 
FROM      INDEX_STATS
 
WHERE    NAME = UPPER('&INDEX_NAME');
 
 
--Delete Space %  값이 20 % 가 넘으면, 그 인덱스는 다시 작성하는 것이 좋다.
 
 
  
## 52 딕셔너리/뷰 정보 조회
+
<source lang="sql"> -- 오라클 사용자에서 사용하는 패키지를 보여는 방법
 
SELECT A.TABLE_NAME
 
    , B.COLUMN_NAME
 
  FROM DICTIONARY A
 
    , DICT_COLUMNS B
 
WHERE  A.TABLE_NAME = B.TABLE_NAME;
 
 
  
# 8. 프로시져/패키지
 
 
----
 
----
 +
:IN_OWNER: 오라클 사용자
  
## 53 패키지 검색 1 - 특정 오라클 사용자 중에서 패키지 소스와 일치하는 텍스트를 조회
+
----
 +
:IN_OBJECT_NAME: 패키지 이름
 +
SELECT OBJECT_NAME
 +
  FROM DBA_OBJECTS
 +
WHERE OWNER =:IN_OWNER
 +
  AND OBJECT_NAME LIKE '%' ||:IN_OBJECT_NAME || '%'
 +
  AND OBJECT_TYPE = 'PACKAGE'; </source>
  
-- 오라클 사용자에서 사용하는 패키지를 보여는 방법
 
---- :IN_OWNER : 오라클 사용자
 
---- :IN_OBJECT_NAME : 패키지 이름
 
 
SELECT    OBJECT_NAME
 
FROM      DBA_OBJECTS
 
WHERE    OWNER = :IN_OWNER
 
AND      OBJECT_NAME LIKE '%' || :IN_OBJECT_NAME || '%'
 
AND      OBJECT_TYPE = 'PACKAGE';
 
 
 
 
-- 오라클 사용자의 패키지 중에서 텍스트 내용을 검색하여 패키지 정보를 추출
 
-- 오라클 사용자의 패키지 중에서 텍스트 내용을 검색하여 패키지 정보를 추출
---- :IN_OWNER : 오라클 사용자
 
---- :IN_TEXT  : 패키지소 스에서 검색할 텍스트
 
 
SELECT    NAME -- 패키지 이름
 
              , LINE -- 라인 수
 
                    , TEXT -- 패키지 BODY에 수정된 내용
 
FROM      DBA_SOURCE
 
WHERE    OWNER = :IN_OWNER
 
AND      TEXT LIKE '%' || :IN_TEXT || '%';
 
 
 
  
## 54 특정 사용자의 패키지 내에서 주석처리가 되지 않은 항목을 조회
+
----
 +
:IN_OWNER: 오라클 사용자
 +
 
 +
----
 +
:IN_TEXT : 패키지소 스에서 검색할 텍스트
 +
 
 +
<source lang="sql"> SELECT NAME -- 패키지 이름 , LINE -- 라인 수 , TEXT -- 패키지 BODY에 수정된 내용 FROM DBA_SOURCE WHERE OWNER =:IN_OWNER AND TEXT LIKE '%' ||:IN_TEXT || '%'; </source>
  
 +
== 특정 사용자의 패키지 내에서 주석처리가 되지 않은 항목을 조회  ==
  
 
/*
 
/*
 +
 
     오라클 사용자가 사용하는 패키지의 BODY 소스를 검색하여
 
     오라클 사용자가 사용하는 패키지의 BODY 소스를 검색하여
 
     주식이 없거나 패턴이 맞지 않는 항목을 조회 한다.
 
     주식이 없거나 패턴이 맞지 않는 항목을 조회 한다.
*/
+
 
+
*/  
SELECT   *
+
<source lang="sql"> SELECT * FROM DBA_OBJECTS B WHERE B.OWNER =:IN_OWNER AND B.OBJECT_TYPE = 'PACKAGE BODY' AND B.STATUS <> 'INVALID' -- VALID 상태만 조회, 만약 INVALID 된다고 해도 패키지를 수행하는 순간 컴파일 됨. AND NOT EXISTS
FROM     DBA_OBJECTS B
+
 
WHERE     B.OWNER = :IN_OWNER
 
AND       B.OBJECT_TYPE = 'PACKAGE BODY'
 
AND       B.STATUS <> 'INVALID' -- VALID 상태만 조회, 만약 INVALID 된다고 해도 패키지를 수행하는 순간 컴파일 됨.
 
AND       NOT EXISTS
 
 
             (SELECT    1
 
             (SELECT    1
 
             FROM      DBA_SOURCE A
 
             FROM      DBA_SOURCE A
1,101번째 줄: 1,063번째 줄:
 
             AND      A.LINE <= 5
 
             AND      A.LINE <= 5
 
             AND      A.TEXT LIKE '%NAME%');
 
             AND      A.TEXT LIKE '%NAME%');
 
  
## 55 다중 UPDATE 쿼리
+
</source>
 +
 
 +
 
 +
== 다중 UPDATE 쿼리   ==
 +
 
 +
<source lang="sql">
  
 
 
/*
 
/*
 +
 
   BYPASS_UJVC 힌트를 이용하면 특정 뷰를 만들어서 컬럼 대 컬럼을 대입 할 수 있습니다.
 
   BYPASS_UJVC 힌트를 이용하면 특정 뷰를 만들어서 컬럼 대 컬럼을 대입 할 수 있습니다.
 
      
 
      
 
   아래 쿼리는 메타정보관리용 유저로서 코멘트의 내용 중에서 정규표현식을 이용하여 관련 데이터를 조작 하는 방법 입니다.
 
   아래 쿼리는 메타정보관리용 유저로서 코멘트의 내용 중에서 정규표현식을 이용하여 관련 데이터를 조작 하는 방법 입니다.
*/
+
 
+
*/  
 +
 
 
UPDATE /*+ BYPASS_UJVC */
 
UPDATE /*+ BYPASS_UJVC */
 +
 
       (  SELECT    X.*
 
       (  SELECT    X.*
 
                   ,CASE
 
                   ,CASE
1,125번째 줄: 1,093번째 줄:
 
                               ,A.GRP_CD A_GRP_CD
 
                               ,A.GRP_CD A_GRP_CD
 
                               ,A.UNIT A_UNIT
 
                               ,A.UNIT A_UNIT
                               ,REGEXP_INSTR(COLUMN_DESC, '단위\:') UNIT_INSTR
+
                               ,REGEXP_INSTR(COLUMN_DESC, '단위\:') UNIT_INSTR                     FROM      DBA_MYCOL A                     WHERE    A.SERVER =:IN_SERVER                     AND      A.OWNER =:IN_OWNER
                    FROM      DBA_MYCOL A
+
                     AND      A.TABLE_NAME =:IN_TABLE_NAME) X)
                    WHERE    A.SERVER = :IN_SERVER
+
 
                    AND      A.OWNER = :IN_OWNER
+
SET A_UNIT = B_UNIT
                     AND      A.TABLE_NAME = :IN_TABLE_NAME) X)
+
 
SET       A_UNIT = B_UNIT
 
 
           UPDATE_DT = SYSDATE;
 
           UPDATE_DT = SYSDATE;
 
 
## 56 CPU를 많이 사용하는 세션의 식별(SQL TEXT 조회)
 
  
SELECT   A.*
+
</source>
 +
 
 +
 
 +
== CPU를 많이 사용하는 세션의 식별(SQL TEXT 조회)  ==
 +
 
 +
<source lang="sql"> SELECT A.*
 +
 
 
         ,(SELECT  SS.SQL_TEXT
 
         ,(SELECT  SS.SQL_TEXT
 
           FROM    V$SQLAREA SS
 
           FROM    V$SQLAREA SS
1,142번째 줄: 1,112번째 줄:
 
           AND      ROWNUM <= 1
 
           AND      ROWNUM <= 1
 
           ) AS SQL_TEST
 
           ) AS SQL_TEST
FROM     (
+
 
 +
FROM (
 +
 
 
           SELECT    A.SID
 
           SELECT    A.SID
 
                   ,C.SERIAL#
 
                   ,C.SERIAL#
1,161번째 줄: 1,133번째 줄:
 
           AND      C.USERNAME IS NOT NULL
 
           AND      C.USERNAME IS NOT NULL
 
           ) A
 
           ) A
WHERE    A.RN <= 10;
 
 
  
## 57 현재 세션에서 10초이상 걸리는 쿼리 조회 (SELECT절)
+
WHERE A.RN <= 10; </source>
 +
 
 +
 
 +
== 현재 세션에서 10초이상 걸리는 쿼리 조회 (SELECT절)   ==
 +
<source lang="sql">
 +
SELECT ABS(SYSDATE - A.LAST_LOAD_TIME) * 24 * 60 * 60 AS SEC_TIEM, A.*
 +
  FROM V$SQLAREA A
 +
    , V$SESSION B
 +
WHERE A.SQL_TEXT LIKE '%SELECT%'
 +
  AND A.ADDRESS = B.SQL_ADDRESS
 +
  AND B.STATUS = 'ACTIVE'
 +
  AND A.ELAPSED_TIME >= 10 * 1000000  -- 실행계획에서 10초 이상 걸리는 쿼리를 조회(실제 걸리는 시간은 아님.)
 +
  AND A.PARSING_SCHEMA_NAME NOT IN ('SYS', 'SYSTEM', 'SYSMAN')
 +
  AND B.USERNAME IS NOT NULL;
 +
</source>
  
+
== 현재 세션에서 PGA, UGA, CPU 사용량 세션별로 조회하는 쿼리  ==
SELECT    ABS(SYSDATE - A.LAST_LOAD_TIME) * 24 * 60 * 60 AS SEC_TIEM, A.*
 
FROM      V$SQLAREA A
 
        ,V$SESSION B
 
WHERE    A.SQL_TEXT LIKE '%SELECT%'
 
AND      A.ADDRESS = B.SQL_ADDRESS
 
AND      B.STATUS = 'ACTIVE'
 
AND      A.ELAPSED_TIME >= 10 * 1000000 -- 실행계획에서 10초 이상 걸리는 쿼리를 조회(실제 걸리는 시간은 아님.)
 
AND      A.PARSING_SCHEMA_NAME NOT IN ('SYS', 'SYSTEM', 'SYSMAN')
 
AND      B.USERNAME IS NOT NULL;
 
 
  
## 58 현재 세션에서 PGA, UGA, CPU 사용량 세션별로 조회하는 쿼리
+
<source lang="sql">
  
+
SELECT B.USERNAME
SELECT   B.USERNAME
 
 
         ,A.SID
 
         ,A.SID
 
         ,A.PGA_USAGE
 
         ,A.PGA_USAGE
1,189번째 줄: 1,162번째 줄:
 
         ,B.PROGRAM
 
         ,B.PROGRAM
 
         ,B.MODULE
 
         ,B.MODULE
FROM     (SELECT   B.SID
+
FROM (SELECT B.SID
 
                     ,MAX(DECODE(C.NAME, 'session pga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS PGA_USAGE
 
                     ,MAX(DECODE(C.NAME, 'session pga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS PGA_USAGE
 
                     ,MAX(DECODE(C.NAME, 'session uga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS UGA_USAGE
 
                     ,MAX(DECODE(C.NAME, 'session uga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS UGA_USAGE
1,198번째 줄: 1,171번째 줄:
 
           GROUP BY  B.SID) A
 
           GROUP BY  B.SID) A
 
         ,V$SESSION B
 
         ,V$SESSION B
WHERE     B.SID = A.SID
+
WHERE B.SID = A.SID AND B.STATUS = 'ACTIVE' AND B.USERNAME IS NOT NULL; </source>
AND       B.STATUS = 'ACTIVE'
 
AND       B.USERNAME IS NOT NULL;
 
 
 
  
## 59 상호 DB간에 컬럼 이름 비교
+
== 상호 DB간에 컬럼 이름 비교   ==
  
+
<source lang="sql">
 
/*
 
/*
 
   양쪽 DB에서 사용하는 테이블 중에서 컬럼 이름 다른 항목을 찾는다.
 
   양쪽 DB에서 사용하는 테이블 중에서 컬럼 이름 다른 항목을 찾는다.
*/
+
*/  
SELECT   A.TABLE_NAME
+
 
        ,A.COLUMN_NAME
+
SELECT A.TABLE_NAME
        ,A.COLUMN_ID
+
      ,A.COLUMN_NAME
        ,A.DATA_TYPE || '(' || A.DATA_LENGTH || ')' DATA_TYPE
+
      ,A.COLUMN_ID
FROM     USER_TAB_COLUMNS@LINK_ESTDB A
+
      ,A.DATA_TYPE || '(' || A.DATA_LENGTH || ')' DATA_TYPE
WHERE     A.TABLE_NAME = :IN_TABLE_NAME
+
FROM USER_TAB_COLUMNS@LINK_ESTDB A WHERE A.TABLE_NAME =:IN_TABLE_NAME AND NOT EXISTS
AND       NOT EXISTS
 
 
             (SELECT    'X'
 
             (SELECT    'X'
 
             FROM      USER_TAB_COLUMNS B
 
             FROM      USER_TAB_COLUMNS B
 
             WHERE    B.TABLE_NAME = A.TABLE_NAME
 
             WHERE    B.TABLE_NAME = A.TABLE_NAME
 
             AND      B.COLUMN_NAME = A.COLUMN_NAME);
 
             AND      B.COLUMN_NAME = A.COLUMN_NAME);
+
</source>
+
<source lang="sql">
+
SELECT A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID  
SELECT   A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID
+
  FROM USER_TAB_COLUMNS@LINK_ESTDB A  
FROM     USER_TAB_COLUMNS@LINK_ESTDB A
+
WHERE A.TABLE_NAME =:IN_TABLE_NAME  
WHERE     A.TABLE_NAME = :IN_TABLE_NAME
+
MINUS  
MINUS
+
SELECT A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID  
SELECT   A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID
+
  FROM USER_TAB_COLUMNS A  
FROM     USER_TAB_COLUMNS A
+
WHERE A.TABLE_NAME =:IN_TABLE_NAME  
WHERE     A.TABLE_NAME = :IN_TABLE_NAME
+
</source>
 +
 
 +
== DB Link 보기  ==
  
 +
<source lang="sql">
 +
SELECT SUBSTRB (U.NAME, 1, 10)                            AS OWNER
 +
    , SUBSTRB (L.NAME, 1, 20)                            AS DB_LINK
 +
    , SUBSTRB (L.HOST, 1, 10)                            AS HOST
 +
    , SUBSTRB (L.USERID || '/' || L.PASSWORD, 1, 15)    AS USERPASS
 +
  FROM SYS.LINK$ L, SYS.USER$ U
 +
WHERE L.OWNER# = U.USER#;
 +
</source>
  
 +
== View의 정의 내역 보기  ==
  
## 60 DB Link 보기
+
<source lang="sql"> SET LONG 100000
  
SELECT   SUBSTRB(U.NAME, 1, 10) AS OWNER
+
SELECT TEXT FROM USER_VIEWS WHERE VIEW_NAME LIKE UPPER('&뷰_이름'); </source>
        ,SUBSTRB(L.NAME, 1, 20) AS DB_LINK
 
        ,SUBSTRB(L.HOST, 1, 10) AS HOST
 
        ,SUBSTRB(L.USERID || '/' || L.PASSWORD, 1, 15) AS USERPASS
 
FROM      SYS.LINK$ L
 
        ,SYS.USER$ U
 
WHERE    L.OWNER# = U.USER#;
 
  
  
## 61 View의 정의 내역 보기
+
== 동일(중복) 자료 삭제 방법  ==
  
SET LONG 100000
+
# ROW_NUMBER() 이용
   
+
<source lang=sql>
SELECT   TEXT
+
DELETE FROM 테이블명
FROM     USER_VIEWS
+
WHERE ROWID IN (
WHERE     VIEW_NAME LIKE UPPER('&뷰_이름');
+
SELECT ROWID
+
  FROM (
 +
    SELECT *
 +
      FROM (
 +
        SELECT ROW_NUMBER() OVER(PARTITION BY 컬럼명 ORDER BY 컬럼명) AS num
 +
          FROM 테이블명
 +
          )
 +
WHERE num > 1 -- num의 값이 1초과인 데이터들만 삭제
 +
)
 +
);
 +
</source>
 +
:
 +
# MIN(ROWID) 보다 큰건은 삭제(신규 추가된건 삭제)
 +
<source lang=sql>
 +
DELETE FROM 테이블명 A
 +
WHERE ROWID > (SELECT MIN(ROWID) FROM 테이블명 B
 +
                WHERE A.컬럼 = B.컬럼
 +
              );
 +
</source>
 +
:
 +
#MAX(ROWID) 보다 작은건 삭제 (처음 추가된건 제)
 +
<source lang=sql>
 +
DELETE FROM 테이블명 A
 +
WHERE ROWID < (SELECT MAX(ROWID) FROM 테이블명 B
 +
                WHERE A.컬럼 = B.컬럼);
 +
</source>
  
## 62 동일한 자료 삭제 방법
 
  
DELETE
+
[[Category:oracle]]
FROM  EMP E   
 
WHERE  E.ROWID > ( SELECT MIN(X.ROWID)   
 
          FROM  EMP X   
 
WHERE  X.EMPNO = E.EMPNO );
 

2023년 4월 6일 (목) 21:25 판

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목차

1 인덱스 정보[편집]

1.1 INDEX 보기[편집]

  • USER_INDEXES
  • USER_IND_COLUMNS
SELECT A.INDEX_NAME
     , A.UNIQUENESS
     , TO_CHAR(COLUMN_POSITION, '999') AS POS
     , SUBSTRB(COLUMN_NAME, 1, 33) AS COLUMN_NAME
  FROM USER_INDEXES A
     , USER_IND_COLUMNS B
 WHERE A.INDEX_NAME = B.INDEX_NAME 
   AND A.TABLE_OWNER = UPPER('E_LUCIS') 
   AND A.TABLE_NAME = UPPER('&테이블명') ORDER BY 1, 3;

1.2 전체 INDEX 보기[편집]

  • DBA_INDEXES
  • DBA_IND_COLUMNS
SELECT SUBSTRB(A.TABLE_NAME, 1, 22) AS TABLE_NAME
     , SUBSTRB(A.INDEX_NAME, 1, 23) AS INDEX_NAME
     , SUBSTRB(A.UNIQUENESS, 1, 7) AS UNIQUE
     , TO_CHAR(COLUMN_POSITION, '999') AS POS
     , SUBSTRB(COLUMN_NAME, 1, 20) AS COLUMN_NAME
  FROM DBA_INDEXES A
     , DBA_IND_COLUMNS B
 WHERE A.INDEX_NAME = B.INDEX_NAME 
   AND A.TABLE_OWNER = B.TABLE_OWNER 
   AND A.TABLE_OWNER = 'E_LUCIS' 
 ORDER BY 1, 2, 3;

1.3 특정 테이블의 인덱스 확인[편집]

  • ALL_IND_COLUMNS
/* 인덱스를 확인 하고자 할때 사용하는 쿼리 */ 
SELECT C.TABLE_NAME
     , C.INDEX_NAME
     , C.COLUMN_NAME
     , C.COLUMN_POSITION
     , T.NUM_ROWS
  FROM ALL_IND_COLUMNS C
     , (SELECT TABLE_NAME, NUM_ROWS
          FROM ALL_TABLES
         WHERE OWNER = 'ESTDBA'
           AND TABLE_NAME IN (SELECT TABLE_NAME                                    
                                FROM USER_TABLES
                               WHERE TABLE_NAME LIKE:IN_TABLE_NAME || '%'
                                   )
           AND NUM_ROWS > 0
       ) T
 WHERE C.TABLE_NAME = T.TABLE_NAME 
 ORDER BY T.NUM_ROWS DESC, C.TABLE_NAME, C.INDEX_NAME, C.COLUMN_POSITION;

1.4 인덱스에 대한 컬럼 조회[편집]

  • USER_IND_COLUMNS
SELECT TABLE_NAME
     , INDEX_NAME
     , COLUMN_POSITION
     , COLUMN_NAME
  FROM USER_IND_COLUMNS 
 ORDER BY TABLE_NAME, INDEX_NAME, COLUMN_POSITION;

1.5 PRIMARY KEY 재생성 방법[편집]

--- PRIMARY KEY DROP

ALTER TABLE EMP 
       DROP PRIMARY KEY;

-- PRIMARY KEY 생성 

ALTER TABLE EMP 
        ADD CONSTRAINT EMP_PK 
    PRIMARY KEY(EMPNO) 
      USING INDEX STORAGE(INITIAL 1M NEXT 1M PCTINCREASE 0) 
 TABLESPACE USERS;

1.6 PRIMARY KEY를 REFERENCE 하는 FOREIGN KEY 찾기[편집]

  • DBA_OBJECTS
  • CDEF$
  • CON$
SELECT C.NAME CONSTRAINT_NAME 
  FROM DBA_OBJECTS A
     , CDEF$ B
     , CON$ C
 WHERE A.OBJECT_NAME = UPPER('&테이블명') 
   AND A.OBJECT_ID = B.ROBJ# 
   AND B.CON# = C.CON#;

1.7 중복인덱스 체크[편집]

  • SYS.ICOL$
  • SYS.IND$
  • SYS.OBJ$
  • SYS.USER$
SELECT O1.NAME || '.' || N1.NAME     REDUNDANT_INDEX
     , O2.NAME || '.' || N2.NAME     SUFFICIENT_INDEX
  FROM SYS.ICOL$  IC1
     , SYS.ICOL$  IC2
     , SYS.IND$   I1
     , SYS.OBJ$   N1
     , SYS.OBJ$   N2
     , SYS.USER$  O1
     , SYS.USER$  O2
 WHERE     IC1.POS# = 1
       AND IC2.BO# = IC1.BO#
       AND IC2.OBJ# != IC1.OBJ#
       AND IC2.POS# = 1
       AND IC2.INTCOL# = IC1.INTCOL#
       AND I1.OBJ# = IC1.OBJ#
       AND BITAND (I1.PROPERTY, 1) = 0
       AND (SELECT MAX (POS#) * (MAX (POS#) + 1) / 2
              FROM SYS.ICOL$
             WHERE OBJ# = IC1.OBJ#) =
           (SELECT SUM (XC1.POS#)
              FROM SYS.ICOL$ XC1, SYS.ICOL$ XC2
             WHERE     XC1.OBJ# = IC1.OBJ#
                   AND XC2.OBJ# = IC2.OBJ#
                   AND XC1.POS# = XC2.POS#
                   AND XC1.INTCOL# = XC2.INTCOL#)
       AND N1.OBJ# = IC1.OBJ#
       AND N2.OBJ# = IC2.OBJ#
       AND O1.USER# = N1.OWNER#
       AND O2.USER# = N2.OWNER#;

또는

select /*+ rule */ 
   a.table_owner, 
   a.table_name, 
   a.index_owner, 
   a.index_name, 
   column_name_list, 
   column_name_list_dup, 
   dup duplicate_indexes, 
   i.uniqueness, 
   i.partitioned, 
   i.leaf_blocks, 
   i.distinct_keys, 
   i.num_rows, 
   i.clustering_factor 
from 
  ( 
   select 
      table_owner, 
      table_name, 
      index_owner, 
      index_name, 
      column_name_list_dup, 
      dup, 
      max(dup) OVER 
       (partition by table_owner, table_name, index_name) dup_mx 
   from 
      ( 
       select 
          table_owner, 
          table_name, 
          index_owner, 
          index_name, 
          substr(SYS_CONNECT_BY_PATH(column_name, ','),2)   
          column_name_list_dup, 
          dup 
       from 
          ( 
          select 
            index_owner, 
            index_name, 
            table_owner, 
            table_name, 
            column_name, 
            count(1) OVER 
             (partition by 
                 index_owner, 
                 index_name) cnt, 
             ROW_NUMBER () OVER 
               (partition by 
                  index_owner, 
                  index_name 
                order by column_position) as seq, 
             count(1) OVER 
               (partition by 
                  table_owner, 
                  table_name, 
                  column_name, 
                  column_position) as dup 
   from 
      sys.dba_ind_columns 
   where 
      index_owner not in ('SYS', 'SYSTEM')) 
where 
   dup!=1 
start with seq=1 
connect by prior seq+1=seq 
and prior index_owner=index_owner 
and prior index_name=index_name 
)) a, 
( 
select 
   table_owner, 
   table_name, 
   index_owner, 
   index_name, 
   substr(SYS_CONNECT_BY_PATH(column_name, ','),2) column_name_list 
from 
( 
select index_owner, index_name, table_owner, table_name, column_name, 
count(1) OVER ( partition by index_owner, index_name) cnt, 
ROW_NUMBER () OVER ( partition by index_owner, index_name order by column_position) as seq 
from sys.dba_ind_columns 
where index_owner not in ('SYS', 'SYSTEM')) 
where seq=cnt 
start with seq=1 
connect by prior seq+1=seq 
and prior index_owner=index_owner 
and prior index_name=index_name 
) b, dba_indexes i 
where 
    a.dup=a.dup_mx 
and a.index_owner=b.index_owner 
and a.index_name=b.index_name 
and a.index_owner=i.owner 
and a.index_name=i.index_name 
order by 
   a.table_owner, a.table_name, column_name_list_dup;

1.8 테이블의 PK를 구성하는 컬럼 조회[편집]

  • USER_TABLES
  • USER_CONSTRAINTS
  • USER_CONS_COLUMNS
SELECT A.TABLE_NAME, B.CONSTRAINT_NAME, C.COLUMN_NAME 
  FROM USER_TABLES A
     , USER_CONSTRAINTS B
     , USER_CONS_COLUMNS C
 WHERE A.TABLE_NAME = B.TABLE_NAME 
   AND B.CONSTRAINT_NAME = C.CONSTRAINT_NAME 
   AND B.CONSTRAINT_TYPE = 'P';

1.9 Index가 없는 Table 조회[편집]

  • DBA_TABLES
  • DBA_INDEXES
SELECT OWNER, TABLE_NAME 
FROM (SELECT OWNER
           , TABLE_NAME
        FROM DBA_TABLES
       MINUS
      SELECT TABLE_OWNER
           , TABLE_NAME
        FROM DBA_INDEXES
     )
 WHERE OWNER NOT IN ('SYS', 'SYSTEM') ORDER BY OWNER, TABLE_NAME;

2 락 정보[편집]

2.1 테이블에 LOCK이 걸렸는지를 보기[편집]

  • V$SESSION
  • V$LOCK
  • DBA_OBJECTS
SELECT A.SID
     , A.SERIAL#
     , SUBSTRB(A.USERNAME, 1, 16) AS USERNAME
     , SUBSTRB(A.MACHINE, 1, 30) AS MACHINE
     , A.TERMINAL
     , A.OSUSER
     , A.PROGRAM
     , SUBSTRB(TO_CHAR(A.LOGON_TIME, 'MM/DD HH24:MI:SS'), 1, 14) AS LOGON_TIME
     , SUBSTRB(C.OBJECT_NAME, 1, 58) AS OBJECT_NAME
  FROM V$SESSION A
     , V$LOCK B
     , DBA_OBJECTS C
 WHERE A.SID = B.SID AND B.ID1 = C.OBJECT_ID 
   AND B.TYPE = 'TM' 
   AND C.OBJECT_NAME LIKE UPPER('&테이블명');

2.2 Lock을 잡고있는 세션과 기다리는 세션 조회[편집]

  • V$SESSION
  • V$LOCK
  • DBA_OBJECTS
SELECT DECODE(B.LOCKWAIT, NULL, ' ', 'w') AS WW
     , B.SID
     , B.SERIAL# AS SER#
     , SUBSTR(B.MACHINE, 1, 10) AS MACHINE
     , SUBSTR(B.PROGRAM, 1, 15) AS PROGRAM
     , SUBSTR(A.OBJECT_NAME, 1, 17) AS OBJ_NAME
     , SUBSTR(B.STATUS, 1, 1) AS S
     , DECODE(B.COMMAND,  0, NULL,  2, 'INSERT',  6, 'UPDATE',  7, 'DELETE',  B.COMMAND) AS SQLCMD
     , B.PROCESS AS PGM_PSS
  FROM V$SESSION B
     , ( SELECT A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME) AS OBJECT_NAME
         FROM V$LOCK A
            , DBA_OBJECTS B
        WHERE  A.ID1 = B.OBJECT_ID(+)
        GROUP BY  A.SID, DECODE(B.OWNER, NULL, A.TYPE || '..ing', B.OWNER || '.' || B.OBJECT_NAME)
       ) A
 WHERE B.SID = A.SID 
   AND B.TADDR IS NOT NULL;

2.3 테이블에 걸린 비정상적 LOCK 풀기[편집]

ALTER SYSTEM KILL SESSION '&SID,&SERIAL';
  • RAC
ALTER SYSTEM KILL SESSION '&SID,&SERIAL,@1';

2.4 작업 중인 데이터베이스 트랜잭션 조회[편집]

  • V$SESSION
  • V$TRANSACTION
  • DBA_ROLLBACK_SEGS
SELECT S.SID
     , S.SERIAL#
     , S.STATUS
     , S.OSUSER
     , S.USERNAME
     , T.STATUS
     , T.START_TIME
  FROM V$SESSION S
     , V$TRANSACTION T
     , DBA_ROLLBACK_SEGS R
 WHERE S.TADDR = T.ADDR 
   AND T.XIDUSN = R.SEGMENT_ID;

2.5 열려 있는 커서 조회[편집]

  • V$SESSION
  • V$OPEN_CURSOR
SELECT A.SID
     , A.OSUSER
     , COUNT(B.SID) AS "CURSOR"
     , A.PROGRAM
     , A.STATUS
  FROM V$SESSION A
     , V$OPEN_CURSOR B
 WHERE A.SID = B.SID(+) 
 GROUP BY A.SID, A.OSUSER, A.PROGRAM, A.STATUS;

2.6 잠금 발생 유형 조회[편집]

  • V$LOCK
SELECT A.SID

         ,DECODE(A.TYPE
                ,'MR', 'MEDIA RECOVERY'
                ,'RT', 'REDO THREAD'
                ,'UN', 'USER_NAME'
                ,'TX', 'TRANSACTION'
                ,'TM', 'DML'
                ,'UL', 'PL/SQL USER LOCK'
                ,'DX', 'DISTRIBUTED XACTION'
                ,'CF', 'CONTROL FILE'
                ,'IS', 'INSTANCE STATE'
                ,'FS', 'FILE SET'
                ,'IR', 'INSTANCE RECOVERY'
                ,'FS', 'FILE SET'
                ,'ST', 'DISK SPACE TRANSACTION'
                ,'TS', 'TEMP SEGMENT'
                ,'IV', 'LIBRARY CACHE INVAILDATION'
                ,'LS', 'LOG START OR SWITCH'
                ,'RW', 'ROW WAIT'
                ,'SQ', 'SEQUENCE NUMBER'
                ,'TE', 'EXTEND TABLE'
                ,'TT', 'TEMP TABLE'
                ,A.TYPE
                )
            AS "LOCK_TYPE"
         ,DECODE(A.LMODE
                ,0, 'NONE'
                ,1, 'NULL'
                ,2, 'ROW-S(SS)'
                ,3, 'ROW-X(SX)'
                ,4, 'SHARE'
                ,5, 'S/ROW-X(SSX)'
                ,6, 'EXCLUSIVE'
                ,TO_CHAR(A.LMODE)
                )
            AS "MODE_HELD"
         ,DECODE(A.REQUEST
                ,0, 'NONE'
                ,1, 'NULL'
                ,2, 'ROW-S(SS)'
                ,3, 'ROW-X(SX)'
                ,4, 'SHARE'
                ,5, 'S/ROW-X(SSX)'
                ,6, 'EXCLUSIVE'
                ,TO_CHAR(A.REQUEST)
                )
            AS "MODE_REQUESTED"
         ,TO_CHAR(A.ID1) AS "LOCK_ID1"
         ,TO_CHAR(A.ID2) AS "LOCK_ID2"
         ,DECODE(BLOCK,  0, 'NOT BLOCKING',  1, 'BLOCKING',  2, 'GLOBAL',  TO_CHAR(BLOCK)) AS "BLOCKING_OTHERS"

FROM V$LOCK A WHERE (ID1, ID2) IN (SELECT B.ID1, ID2

                         FROM      V$LOCK B
                         WHERE     B.ID1 = A.ID1);

2.7 잠금 상태 오브젝트 조회[편집]

  • V$LOCKED_OBJECT
  • V$SESSION
  • DBA_OBJECT
SELECT A.SESSION_ID
     , B.SERIAL#
     , A.OS_USER_NAME
     , A.ORACLE_USERNAME
     , C.OBJECT_NAME
     , A.LOCKED_MODE
     , A.XIDUSN
  FROM V$LOCKED_OBJECT A
      , V$SESSION B
      , DBA_OBJECTS C
 WHERE A.OBJECT_ID = C.OBJECT_ID AND A.SESSION_ID = B.SID;

2.8 잠금 SQL 구문 조회[편집]

  • V$SQLTEXT
  • V$SESSION
  • V$ACCESS
SELECT B.USERNAME AS USERNAME
     , C.SID AS SID
     , C.OWNER AS OBJECT_OWNER
     , C.OBJECT AS OBJECT
     , B.LOCKWAIT
     , A.PIECE
     , A.SQL_TEXT AS SQL
 FROM V$SQLTEXT A
    , V$SESSION B
    , V$ACCESS C
WHERE A.ADDRESS = B.SQL_ADDRESS 
  AND A.HASH_VALUE = B.SQL_HASH_VALUE 
  AND B.SID = C.SID 
  AND C.OWNER!= 'SYS';

2.9 해당 테이블의 세션을 제거하는 쿼리[편집]

  • V$LOCK
  • DBA_OBJECTS
  • V$SESSION
SELECT 'ALTER SYSTEM KILL SESSION '''|| S.SID||','||S.SERIAL# ||''';' 
  FROM V$LOCK L, DBA_OBJECTS O, V$SESSION S 
 WHERE L.ID1 = O.OBJECT_ID 
   AND S.SID = L.SID 
   AND O.OWNER = 'ESTDBA' 
   AND O.OBJECT_NAME = 'TMP_GSYM2'

2.10 Blocking Lock Session 확인[편집]

  • V$SQLTEXT
  • V$SESSION
  • V$ACCESS
SELECT B.BLOCKING_SESSION AS BLOCKING_SESSION_SID
     , C.SID AS LOCK_SESSION_SID
     , C.OWNER AS OBJECT_OWNER
     , C.OBJECT AS OBJECT
     , B.LOCKWAIT
     , A.PIECE
     , A.SQL_TEXT AS SQL
  FROM V$SQLTEXT A
     , V$SESSION B
     , V$ACCESS C
 WHERE A.ADDRESS = B.SQL_ADDRESS 
   AND A.HASH_VALUE = B.SQL_HASH_VALUE 
   AND B.SID = C.SID 
   AND B.BLOCKING_SESSION IS NOT NULL 
   AND C.OWNER NOT IN ('SYS', 'PUBLIC') 
   AND C.OBJECT NOT IN ('TOAD_PLAN_TABLE') 
 ORDER BY A.PIECE;

3 테이블 정보[편집]

3.1 테이블 생성일자 보기[편집]

  • USER_OBJECTS
SELECT SUBSTRB(OBJECT_NAME, 1, 15) AS OBJECT_NAME
     , CREATED
     , LAST_DDL_TIME
     , TIMESTAMP
     , STATUS
  FROM USER_OBJECTS 
 WHERE OBJECT_NAME = UPPER('&테이블명') 
   AND OBJECT_TYPE = 'TABLE';

3.2 테이블의 크기 및 블록 보기[편집]

  • USER_SEGMENTS
SELECT SUBSTR(SEGMENT_NAME, 1, 20)
     , BYTES
     , BLOCKS 
  FROM USER_SEGMENTS 
 WHERE SEGMENT_NAME = UPPER('&테이블명');

3.3 파티션 테이블의 파티션 범위 보기[편집]

  • USER_TAB_PARTITIONS
SELECT SUBSTRB(PARTITION_NAME, 1, 30) AS PARTITION_NAME, SUBSTRB(TABLESPACE_NAME, 1, 30) AS TABLESPACE_NAME, HIGH_VALUE 
  FROM USER_TAB_PARTITIONS 
 WHERE TABLE_NAME = UPPER('&테이블명');

3.4 CONSTRAINT 보기[편집]

  • DBA_CONSTRAINTS
  • DBA_CONS_COLUMNS
SELECT DECODE(A.CONSTRAINT_TYPE, 'P', 'Primary Key', 'R', 'Foreign Key', 'C', 'Table Check', 'V', 'View Check', 'U', 'Unique', '?')            AS "유형"
     , SUBSTRB(A.CONSTRAINT_NAME, 1, 25) AS CONSTRAINT_NAME
     , B.POSITION
     , SUBSTRB(B.COLUMN_NAME, 1, 25) AS COLUMN_NAME
 FROM DBA_CONSTRAINTS A
    , DBA_CONS_COLUMNS B
WHERE A.CONSTRAINT_NAME = B.CONSTRAINT_NAME 
  AND A.OWNER = 'E_LUCIS' 
  AND A.TABLE_NAME = UPPER('&테이블명') ORDER BY 1, 2, 3;

3.5 특정 테이블의 스키마 구조 확인[편집]

3.5.1 DBA 용[편집]

  • DBA_TAB_COLUMNS
  • DBA_COL_COMMENTS
  • DBA_CONS_COLUMNS
SELECT OWNER
     , TABLE_NAME
     , COLUMN_NAME
     , PK
     , COLUMN_NAME
     , DATA_TYPE || '( ' || NVL(DATA_TYPE_2, DATA_LENGTH) || ' )' DATA_TYPE
     , NULLABLE
     , COMMENTS
  FROM (SELECT A.OWNER
             , A.TABLE_NAME
             , A.COLUMN_ID
             , B.POSITION PK
             , A.COLUMN_NAME
             , A.DATA_TYPE
             , A.DATA_PRECISION || DECODE(A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE) DATA_TYPE_2
             , A.DATA_LENGTH
             , A.DATA_PRECISION
             , A.DATA_SCALE
             , A.NULLABLE
             , A.COMMENTS
             , ROW_NUMBER() OVER (PARTITION BY A.OWNER, A.TABLE_NAME, A.COLUMN_ID ORDER BY A.COLUMN_ID, B.POSITION) RN
          FROM (SELECT COL.OWNER
                     , COL.TABLE_NAME
                     , COL.COLUMN_ID
                     , COL.COLUMN_NAME
                     , COL.DATA_TYPE
                     , COL.DATA_LENGTH
                     , COL.DATA_PRECISION
                     , COL.DATA_SCALE
                     , COL.NULLABLE
                     , COM.COMMENTS
                  FROM DBA_TAB_COLUMNS COL
                     , DBA_COL_COMMENTS COM
                 WHERE COL.COLUMN_NAME = COM.COLUMN_NAME
                   AND COL.OWNER = COM.OWNER 
                   AND COL.TABLE_NAME = COM.TABLE_NAME 
                   AND COM.OWNER =:IN_OWNER
                   AND COM.TABLE_NAME LIKE:IN_TABLE_NAME || '%'
               ) A
               , DBA_CONS_COLUMNS B
           WHERE B.TABLE_NAME(+) = A.TABLE_NAME
             AND B.COLUMN_NAME(+) = A.COLUMN_NAME) X
WHERE X.RN = 1 ORDER BY X.TABLE_NAME, X.COLUMN_ID;

3.5.2 일반 사용자 용[편집]

SELECT TABLE_NAME
       , COLUMN_NAME
       , PK
       , COLUMN_NAME
       , DATA_TYPE || '( ' || NVL (DATA_TYPE_2, DATA_LENGTH) || ' )'    DATA_TYPE
       , NULLABLE
       , COMMENTS
    FROM (SELECT A.TABLE_NAME
               , A.COLUMN_ID
               , B.POSITION                                                   PK
               , A.COLUMN_NAME
               , A.DATA_TYPE
               ,    A.DATA_PRECISION
                 || DECODE (A.DATA_SCALE, NULL, NULL, ',' || A.DATA_SCALE)    DATA_TYPE_2
               , A.DATA_LENGTH
               , A.DATA_PRECISION
               , A.DATA_SCALE
               , A.NULLABLE
               , A.COMMENTS
               , ROW_NUMBER ()
                     OVER (PARTITION BY A.TABLE_NAME, A.COLUMN_ID
                           ORDER BY A.COLUMN_ID, B.POSITION)                  RN
            FROM (SELECT COL.TABLE_NAME
                       , COL.COLUMN_ID
                       , COL.COLUMN_NAME
                       , COL.DATA_TYPE
                       , COL.DATA_LENGTH
                       , COL.DATA_PRECISION
                       , COL.DATA_SCALE
                       , COL.NULLABLE
                       , COM.COMMENTS
                    FROM USER_TAB_COLUMNS COL, USER_COL_COMMENTS COM
                   WHERE     COL.COLUMN_NAME = COM.COLUMN_NAME
                         AND COL.TABLE_NAME = COM.TABLE_NAME
                         AND COM.TABLE_NAME LIKE :IN_TABLE_NAME || '%') A
               , USER_CONS_COLUMNS B
           WHERE     B.TABLE_NAME(+) = A.TABLE_NAME
                 AND B.COLUMN_NAME(+) = A.COLUMN_NAME) X
   WHERE X.RN = 1
ORDER BY X.TABLE_NAME, X.COLUMN_ID;

3.6 사용자별 오브젝트 수[편집]

  • DBA_OBJECTS
SELECT OWNER                                                AS "OWNER"
       , SUM (DECODE (OBJECT_TYPE, 'TABLE', 1, 0))            AS "TABLE"
       , SUM (DECODE (OBJECT_TYPE, 'INDEX', 1, 0))            AS "INDEX"
       , SUM (DECODE (OBJECT_TYPE, 'SYNONYM', 1, 0))          AS "SYNONYMS"
       , SUM (DECODE (OBJECT_TYPE, 'SEQUENCE', 1, 0))         AS "SEQUENCES"
       , SUM (DECODE (OBJECT_TYPE, 'VIEW', 1, 0))             AS "VIEWS"
       , SUM (DECODE (OBJECT_TYPE, 'CLUSTER', 1, 0))          AS "CLUSTERS"
       , SUM (DECODE (OBJECT_TYPE, 'DATABASE LINK', 1, 0))    AS "DBLINKS"
       , SUM (DECODE (OBJECT_TYPE, 'PACKAGE', 1, 0))          AS "PACKAGES"
       , SUM (DECODE (OBJECT_TYPE, 'PACKAGE BODY', 1, 0))     AS "PACKAGE_BODY"
       , SUM (DECODE (OBJECT_TYPE, 'PROCEDURE', 1, 0))        AS "PROCEDURES"
       , SUM (DECODE (OBJECT_TYPE, 'FUNCTION', 1, 0))         AS "FUNCTION"
    FROM DBA_OBJECTS
GROUP BY OWNER;

4 모니터링[편집]



4.1 연결되어 있는 OS 사용자 및 프로그램 조회[편집]

  • V$SESSION
SELECT SID
     , SERIAL#
     , OSUSER
     , SUBSTRB(USERNAME, 1, 10) AS USER_NAME
     , SUBSTRB(PROGRAM, 1, 30) AS PROGRAM_NAME
     , STATUS
     , TO_CHAR(LOGON_TIME, 'YYYY/MM/DD HH:MI') AS LOGON_TIME
  FROM V$SESSION WHERE TYPE!= ‘BACKGROUND’ AND STATUS = ‘ACTIVE’;

4.2 1시간 이상 유휴 상태인 세션[편집]

SELECT SID
     , SERIAL#
     , USERNAME
     , TRUNC(LAST_CALL_ET / 3600, 2) || ' HR' LAST_CALL_ET
  FROM V$SESSION 
 WHERE LAST_CALL_ET > 3600 
   AND USERNAME IS NOT NULL;

4.3 Active Session 중 Idle Time이 긴 작업[편집]

  • V$SESSION
  • V$PROCESS
SELECT VS.SID || ',' || VS.SERIAL# " SID"
     , VP.SPID
     , VS.MACHINE
     , VS.PROGRAM
     , VS.MODULE
     , VS.STATUS
     , TO_CHAR(VS.LOGON_TIME, 'MM/DD HH24:MI') LOGIN_TIME
     , ROUND(VS.LAST_CALL_ET / 60) "IDLE"
  FROM V$SESSION VS
     , V$PROCESS VP
 WHERE VS.STATUS = 'ACTIVE' 
   AND VS.SID NOT IN (1, 2, 3, 4, 5, 6, 7) 
   AND VS.PADDR = VP.ADDR 
 ORDER BY 8;

4.4 DBUser 별로 Session 정보를 조회[편집]

SELECT S.USERNAME
     , S.SID
     , S.SERIAL#
     , P.SPID
     , S.OSUSER
     , S.MACHINE
     , S.PROGRAM
     , TO_CHAR(S.LOGON_TIME, 'MM/DD HH24:MI') "LOGON_TIME"
     , ROUND(S.LAST_CALL_ET / 60) "IDLE"
  FROM V$SESSION S
     , V$PROCESS P
 WHERE S.PADDR = P.ADDR AND S.USERNAME LIKE UPPER('&DBUSER%') 
 ORDER BY 9;

4.5 Session별 사용 명령어[편집]

  • V$SESSION
  • V$SESSTAT
  • V$STATNAME
  • V$PROCESS
SELECT SESS.SID

         ,SESS.SERIAL#
         ,SUBSTR(SESS.USERNAME, 1, 10) "USER NAME"
         ,SUBSTR(OSUSER, 1, 11) "OS USER"
         ,SUBSTR(SESS.MACHINE, 1, 15) "MACHINE NAME"
         ,STATUS
         ,UPPER(
            DECODE(NVL(COMMAND, 0)
                  ,0, '---'
                  ,1, 'CREATE TABLE'
                  ,2, 'INSERT -'
                  ,3, 'SELECT -'
                  ,4, 'CREATE CLUST'
                  ,5, 'ALTER CLUST'
                  ,6, 'UPDATE -'
                  ,7, 'DELETE -'
                  ,8, 'DROP -'
                  ,9, 'CREATE INDEX'
                  ,10, 'DROP INDEX'
                  ,11, 'ALTER INDEX'
                  ,12, 'DROP TABLE'
                  ,13, 'CREATE SEQ'
                  ,14, 'ALTER SEQ'
                  ,15, 'ALTER TABLE'
                  ,16, 'DROP SEQ'
                  ,17, 'GRANT'
                  ,18, 'REVOKE'
                  ,19, 'CREATE SYN'
                  ,20, 'DROP SYN'
                  ,21, 'CREATE VIEW'
                  ,22, 'DROP VIEW'
                  ,23, 'VALIDATE IX'
                  ,24, 'CREATE PROC'
                  ,25, 'ALTER PROC'
                  ,26, 'LOCK TABLE'
                  ,27, 'NO OPERATION'
                  ,28, 'RENAME'
                  ,29, 'COMMENT'
                  ,30, 'AUDIT'
                  ,31, 'NOAUDIT'
                  ,32, 'CREATE DBLINK'
                  ,33, 'DROP DB LINK'
                  ,34, 'CREATE DATABASE'
                  ,35, 'ALTER DATABASE'
                  ,36, 'CREATE RBS'
                  ,37, 'ALTER RBS'
                  ,38, 'DROP RBS'
                  ,39, 'CREATE TABLESPACE'
                  ,40, 'ALTER TABLESPACE'
                  ,41, 'DROP TABLESPACE'
                  ,42, 'ALTER SESSION'
                  ,43, 'ALTER USER'
                  ,44, 'COMMIT'
                  ,45, 'ROLLBACK'
                  ,47, 'PL/SQL EXEC'
                  ,48, 'SET TRANSACTION'
                  ,49, 'SWITCH LOG'
                  ,50, 'EXPLAIN'
                  ,51, 'CREATE USER'
                  ,52, 'CREATE ROLE'
                  ,53, 'DROP USER'
                  ,54, 'DROP ROLE'
                  ,55, 'SET ROLE'
                  ,56, 'CREATE SCHEMA'
                  ,58, 'ALTER TRACING'
                  ,59, 'CREATE TRIGGER'
                  ,61, 'DROP TRIGGER'
                  ,62, 'ANALYZE TABLE'
                  ,63, 'ANALYZE INDEX'
                  ,69, 'DROP PROCEDURE'
                  ,71, 'CREATE SNAP LOG'
                  ,72, 'ALTER SNAP LOG'
                  ,73, 'DROP SNAP LOG'
                  ,74, 'CREATE SNAPSHOT'
                  ,75, 'ALTER SNAPSHOT'
                  ,76, 'DROP SNAPSHOT'
                  ,85, 'TRUNCATE TABLE'
                  ,88, 'ALTER VIEW'
                  ,91, 'CREATE FUNCTION'
                  ,92, 'ALTER FUNCTION'
                  ,93, 'DROP FUNCTION'
                  ,94, 'CREATE PACKAGE'
                  ,95, 'ALTER PACKAGE'
                  ,96, 'DROP PACKAGE'
                  ,46, 'SAVEPOINT'
                  )
          )
            COMMAND
         ,SESS.PROCESS "C.PROC"
         ,PROC.SPID "S.PROC"
         ,TO_CHAR(SESS.LOGON_TIME, 'YYYY-MM-DD HH24:MI')

 FROM V$SESSION SESS
    , V$SESSTAT STAT
    , V$STATNAME NAME
    , V$PROCESS PROC
WHERE SESS.SID = STAT.SID AND STAT.STATISTIC# = NAME.STATISTIC# AND SESS.USERNAME IS NOT NULL AND NAME.NAME = 'RECURSIVE CALLS' AND SESS.PADDR = PROC.ADDR ORDER BY 3, 1, 2;

4.6 사용자 session 2시간 이상 idle 상태가 지속되는 session kill[편집]

  • V$SESSION
  • V$PROCESS
SET PAGESIZE 0 SPOOL KILLIDLE3.SQL

SELECT DISTINCT '!KILL -9 ' || B.SPID, 'ALTER SYSTEM KILL SESSION '''|| A.SID || ',' || A.SERIAL# || ''';' 
  FROM V$SESSION A
     , V$PROCESS B
 WHERE A.PADDR IN (SELECT S.PADDR
                     FROM V$SESSION S
                    WHERE STATUS = 'INACTIVE'
                    GROUP BY  S.PADDR
                   HAVING MIN(ROUND(LAST_CALL_ET / 60)) > 120)
   AND A.PADDR = B.ADDR 
   AND A.STATUS = 'INACTIVE';

SPOOL OFF

4.7 Oracle Process의 정보[편집]

  • V$SESSION
  • V$PROCESS
  • SYS.V_$SESS_IO
SELECT S.STATUS "STATUS"
         ,S.SERIAL# "SERIAL#"
         ,S.TYPE "TYPE"
         ,S.USERNAME "DB USER"
         ,S.OSUSER "CLIENT USER"
         ,S.SERVER "SERVER"
         ,S.MACHINE "MACHINE"
         ,S.MODULE "MODULE"
         ,S.TERMINAL "TERMINAL"
         ,S.PROGRAM "PROGRAM"
         ,P.PROGRAM "O.S. PROGRAM"
         ,S.LOGON_TIME "CONNECT TIME"
         ,LOCKWAIT "LOCK WAIT"
         ,SI.PHYSICAL_READS "PHYSICAL READS"
         ,SI.BLOCK_GETS "BLOCK GETS"
         ,SI.CONSISTENT_GETS "CONSISTENT GETS"
         ,SI.BLOCK_CHANGES "BLOCK CHANGES"
         ,SI.CONSISTENT_CHANGES "CONSISTENT CHANGES"
         ,S.PROCESS "PROCESS"
         ,P.SPID
         ,P.PID
         ,S.SERIAL#
         ,SI.SID
         ,S.SQL_ADDRESS "ADDRESS"
         ,S.SQL_HASH_VALUE "SQL HASH"
         ,S.ACTION
  FROM V$SESSION S
     , V$PROCESS P
     , SYS.V_$SESS_IO SI
WHERE S.PADDR = P.ADDR(+)
  AND SI.SID(+) = S.SID 
  AND S.USERNAME IS NOT NULL 
  AND NVL(S.OSUSER, 'X') <> 'SYSTEM' 
  AND S.TYPE <> 'BACKGROUND' 
ORDER BY 3;

4.8 오브젝트에 접속되어 있는 프로그램 조회[편집]

  • V$SESSION
  • V$ACCESS
SELECT SUBSTR(B.OBJECT, 1, 15) AS OBJECT, SUBSTR(A.PROGRAM, 1, 15) AS PROGRAM, COUNT(*) AS CNT 
  FROM V$SESSION A
      ,V$ACCESS B
WHERE A.SID = B.SID 
  AND B.OWNER NOT IN ('SYS') 
  AND A.TYPE!= 'BACKGROUND' 
  AND B.OBJECT LIKE UPPER('&OBJECT_NAME') || '%' GROUP BY B.OBJECT, SUBSTR(A.PROGRAM, 1, 15);

4.9 롤백 세그먼트 경합 조회[편집]

  • V$ROLLSTAT
  • V$ROLLNAME
SELECT NAME T0
     , GETS T1         ,WAITS T2
     , TO_CHAR(TRUNC(WAITS / GETS * 100, 2), 099.99) || '%' T3
     , TO_CHAR(ROUND(RSSIZE / 1024)) T4
     , SHRINKS T5
     , EXTENDS T6
  FROM V$ROLLSTAT
     , V$ROLLNAME
WHERE V$ROLLSTAT.USN = V$ROLLNAME.USN;

4.10 CPU를 많이 사용하는 세션의 식별[편집]

  • V$SESSTAT
  • V$STATNAME
  • V$SESSION
SELECT A.SID
     , C.SERIAL#
     , A.VALUE
     , C.USERNAME
     , C.STATUS
     , C.PROGRAM
  FROM V$SESSTAT A
     , V$STATNAME B
     , V$SESSION C
WHERE A.STATISTIC# = B.STATISTIC# 
  AND A.SID = C.SID 
  AND B.NAME = 'CPU used by this session' 
  AND A.VALUE > 0 ORDER BY A.VALUE DESC;

4.11 Disk Read 가 많은 SQL문 찾기[편집]

  • V$SQLAREA
SELECT DISK_READS, SQL_TEXT 
  FROM V$SQLAREA 
 WHERE DISK_READS > 100 
ORDER BY DISK_READS DESC;

4.12 Rollback Segment를 사용하고 있는 SQL문 조회[편집]

  • V$ROLLNAME
  • V$ROLLSTAT
  • V$SESSION
  • V$SQLTEXT
  • V$TRANSACTION
SELECT A.NAME
     , B.XACTS
     , C.SID
     , C.SERIAL#
     , C.USERNAME
     , D.SQL_TEXT
  FROM V$ROLLNAME A
     , V$ROLLSTAT B
     , V$SESSION C
     , V$SQLTEXT D
     , V$TRANSACTION E
 WHERE A.USN = B.USN 
   AND B.USN = E.XIDUSN 
   AND C.TADDR = E.ADDR 
   AND C.SQL_ADDRESS = D.ADDRESS 
   AND C.SQL_HASH_VALUE = D.HASH_VALUE 
ORDER BY A.NAME, C.SID, D.PIECE;

4.13 오래도록 수행되는 Full Table Scan를 모니터링[편집]

  • V$SESSION_LONGOPS
SELECT SID
     , SERIAL#
     , OPNAME
     , TO_CHAR(START_TIME, 'HH24:MI:SS') AS "START"
     , (SOFAR / TOTALWORK) * 100 AS "PERCENT_COMPLETE"
  FROM V$SESSION_LONGOPS;

4.14 System 테이블스페이스에 비시스템 세그먼트 조회[편집]

  • DBA_SEGMENTS
SELECT OWNER
     , SEGMENT_NAME
     , SEGMENT_TYPE
     , TABLESPACE_NAME
  FROM DBA_SEGMENTS 
 WHERE OWNER NOT IN ('SYS', 'SYSTEM') 
   AND TABLESPACE_NAME = 'SYSTEM';

4.15 인덱스의 Delete Space 조회[편집]

  • INDEX_STATS
--Delete Space% 값이 20% 가 넘으면, 그 인덱스는 다시 작성하는 것이 좋다.
SELECT NAME
     , LF_ROWS
     , DEL_LF_ROWS
     , (DEL_LF_ROWS / LF_ROWS) * 100 AS "DELETE SPACE%"
  FROM INDEX_STATS WHERE NAME = UPPER('&INDEX_NAME');

4.16 딕셔너리/뷰 정보 조회[편집]

  • DICTIONARY
  • DICT_COLUMNS
SELECT A.TABLE_NAME
     , B.COLUMN_NAME
  FROM DICTIONARY A
     , DICT_COLUMNS B
 WHERE A.TABLE_NAME = B.TABLE_NAME;

5 프로시져/패키지[편집]



5.1 패키지 검색 1 - 특정 오라클 사용자 중에서 패키지 소스와 일치하는 텍스트를 조회[편집]

-- 오라클 사용자에서 사용하는 패키지를 보여는 방법

----
:IN_OWNER: 오라클 사용자

----
:IN_OBJECT_NAME: 패키지 이름
SELECT OBJECT_NAME 
  FROM DBA_OBJECTS 
 WHERE OWNER =:IN_OWNER 
   AND OBJECT_NAME LIKE '%' ||:IN_OBJECT_NAME || '%' 
   AND OBJECT_TYPE = 'PACKAGE';

-- 오라클 사용자의 패키지 중에서 텍스트 내용을 검색하여 패키지 정보를 추출


IN_OWNER: 오라클 사용자

IN_TEXT : 패키지소 스에서 검색할 텍스트
SELECT NAME -- 패키지 이름 , LINE -- 라인 수 , TEXT -- 패키지 BODY에 수정된 내용 FROM DBA_SOURCE WHERE OWNER =:IN_OWNER AND TEXT LIKE '%' ||:IN_TEXT || '%';

5.2 특정 사용자의 패키지 내에서 주석처리가 되지 않은 항목을 조회[편집]

/*

   오라클 사용자가 사용하는 패키지의 BODY 소스를 검색하여
   주식이 없거나 패턴이 맞지 않는 항목을 조회 한다.
  • /
SELECT * FROM DBA_OBJECTS B WHERE B.OWNER =:IN_OWNER AND B.OBJECT_TYPE = 'PACKAGE BODY' AND B.STATUS <> 'INVALID' -- VALID 상태만 조회, 만약 INVALID 된다고 해도 패키지를 수행하는 순간 컴파일 됨. AND NOT EXISTS

            (SELECT    1
             FROM      DBA_SOURCE A
             WHERE     A.OWNER = B.OWNER
             AND       A.TYPE = B.OBJECT_TYPE
             AND       A.NAME = B.OBJECT_NAME
             AND       A.LINE <= 5
             AND       A.TEXT LIKE '%NAME%');


5.3 다중 UPDATE 쿼리[편집]

/*

   BYPASS_UJVC 힌트를 이용하면 특정 뷰를 만들어서 컬럼 대 컬럼을 대입 할 수 있습니다.
    
   아래 쿼리는 메타정보관리용 유저로서 코멘트의 내용 중에서 정규표현식을 이용하여 관련 데이터를 조작 하는 방법 입니다.

*/ 

UPDATE /*+ BYPASS_UJVC */

      (   SELECT    X.*
                   ,CASE
                      WHEN UNIT_INSTR > 0 THEN SUBSTR(X.COLUMN_DESC, X.UNIT_INSTR + 3, 1)
                    END
                      B_UNIT
          FROM      (SELECT    A.SERVER
                              ,A.OWNER
                              ,A.TABLE_NAME
                              ,A.COLUMN_NAME
                              ,A.COLUMN_DESC
                              ,A.GRP_CD A_GRP_CD
                              ,A.UNIT A_UNIT
                              ,REGEXP_INSTR(COLUMN_DESC, '단위\:') UNIT_INSTR                     FROM      DBA_MYCOL A                     WHERE     A.SERVER =:IN_SERVER                     AND       A.OWNER =:IN_OWNER
                     AND       A.TABLE_NAME =:IN_TABLE_NAME) X)

SET A_UNIT = B_UNIT

          UPDATE_DT = SYSDATE;


5.4 CPU를 많이 사용하는 세션의 식별(SQL TEXT 조회)[편집]

SELECT A.*

         ,(SELECT   SS.SQL_TEXT
           FROM     V$SQLAREA SS
           WHERE    SS.ADDRESS = A.SQL_ADDRESS
           AND      ROWNUM <= 1
          ) AS SQL_TEST

FROM (

          SELECT    A.SID
                   ,C.SERIAL#
                   ,A.VALUE
                   ,C.USERNAME
                   ,C.STATUS
                   ,C.PROGRAM
                   ,C.SQL_ADDRESS
                   ,ROW_NUMBER() OVER (ORDER BY A.VALUE DESC) RN
          FROM      V$SESSTAT A
                   ,V$STATNAME B
                   ,V$SESSION C
          WHERE     A.STATISTIC# = B.STATISTIC#
          AND       A.SID = C.SID
          AND       B.NAME = 'CPU used by this session'
          AND       A.VALUE > 0
          AND       C.STATUS = 'ACTIVE'
          AND       C.USERNAME IS NOT NULL
          ) A

WHERE A.RN <= 10;


5.5 현재 세션에서 10초이상 걸리는 쿼리 조회 (SELECT절)[편집]

SELECT ABS(SYSDATE - A.LAST_LOAD_TIME) * 24 * 60 * 60 AS SEC_TIEM, A.* 
  FROM V$SQLAREA A
     , V$SESSION B
 WHERE A.SQL_TEXT LIKE '%SELECT%' 
   AND A.ADDRESS = B.SQL_ADDRESS 
   AND B.STATUS = 'ACTIVE' 
   AND A.ELAPSED_TIME >= 10 * 1000000  -- 실행계획에서 10초 이상 걸리는 쿼리를 조회(실제 걸리는 시간은 아님.) 
   AND A.PARSING_SCHEMA_NAME NOT IN ('SYS', 'SYSTEM', 'SYSMAN') 
   AND B.USERNAME IS NOT NULL;

5.6 현재 세션에서 PGA, UGA, CPU 사용량 세션별로 조회하는 쿼리[편집]

SELECT B.USERNAME
         ,A.SID
         ,A.PGA_USAGE
         ,A.UGA_USAGE
         ,A.CPU_USAGE_SECONDS
         ,B.MACHINE
         ,B.PROGRAM
         ,B.MODULE
FROM (SELECT B.SID
                    ,MAX(DECODE(C.NAME, 'session pga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS PGA_USAGE
                    ,MAX(DECODE(C.NAME, 'session uga memory', TRUNC(B.VALUE / 1024 / 1024) || 'MB', 0)) AS UGA_USAGE
                    ,MAX(DECODE(C.NAME, 'CPU used by this session', (B.VALUE / 100) || ' Sec', 0)) AS CPU_USAGE_SECONDS
           FROM      V$SESSTAT B
                    ,V$STATNAME C
           WHERE     B.STATISTIC# = C.STATISTIC#
           GROUP BY  B.SID) A
         ,V$SESSION B
WHERE B.SID = A.SID AND B.STATUS = 'ACTIVE' AND B.USERNAME IS NOT NULL;

5.7 상호 DB간에 컬럼 이름 비교[편집]

/*
   양쪽 DB에서 사용하는 테이블 중에서 컬럼 이름 다른 항목을 찾는다.
*/ 

SELECT A.TABLE_NAME
      ,A.COLUMN_NAME
      ,A.COLUMN_ID
      ,A.DATA_TYPE || '(' || A.DATA_LENGTH || ')' DATA_TYPE
FROM USER_TAB_COLUMNS@LINK_ESTDB A WHERE A.TABLE_NAME =:IN_TABLE_NAME AND NOT EXISTS
            (SELECT    'X'
             FROM      USER_TAB_COLUMNS B
             WHERE     B.TABLE_NAME = A.TABLE_NAME
             AND       B.COLUMN_NAME = A.COLUMN_NAME);
SELECT A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID 
  FROM USER_TAB_COLUMNS@LINK_ESTDB A 
 WHERE A.TABLE_NAME =:IN_TABLE_NAME 
 MINUS 
SELECT A.TABLE_NAME, A.COLUMN_NAME, A.COLUMN_ID 
  FROM USER_TAB_COLUMNS A 
 WHERE A.TABLE_NAME =:IN_TABLE_NAME

5.8 DB Link 보기[편집]

SELECT SUBSTRB (U.NAME, 1, 10)                            AS OWNER
     , SUBSTRB (L.NAME, 1, 20)                            AS DB_LINK
     , SUBSTRB (L.HOST, 1, 10)                            AS HOST
     , SUBSTRB (L.USERID || '/' || L.PASSWORD, 1, 15)     AS USERPASS
  FROM SYS.LINK$ L, SYS.USER$ U
 WHERE L.OWNER# = U.USER#;

5.9 View의 정의 내역 보기[편집]

SET LONG 100000

SELECT TEXT FROM USER_VIEWS WHERE VIEW_NAME LIKE UPPER('&뷰_이름');


5.10 동일(중복) 자료 삭제 방법[편집]

  1. ROW_NUMBER() 이용
DELETE FROM 테이블명
	WHERE ROWID IN (
		SELECT ROWID 
		  FROM (
		    	SELECT * 
		    	  FROM (
		    	    	SELECT ROW_NUMBER() OVER(PARTITION BY 컬럼명 ORDER BY 컬럼명) AS num
		    		      FROM 테이블명
		    	       )
		 WHERE num > 1 --  num의 값이 1초과인 데이터들만 삭제
	)
);
  1. MIN(ROWID) 보다 큰건은 삭제(신규 추가된건 삭제)
DELETE FROM 테이블명 A
 WHERE ROWID > (SELECT MIN(ROWID) FROM 테이블명 B
                 WHERE A.컬럼 = B.컬럼
               );
  1. MAX(ROWID) 보다 작은건 삭제 (처음 추가된건 제)
DELETE FROM 테이블명 A
 WHERE ROWID < (SELECT MAX(ROWID) FROM 테이블명 B
                 WHERE A.컬럼 = B.컬럼);