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"표 샘플"의 두 판 사이의 차이

DB CAFE

157번째 줄: 157번째 줄:
 
|parallel_server_instances||number of instances to use for sizing OPS SGA structures||설정하지 않음
 
|parallel_server_instances||number of instances to use for sizing OPS SGA structures||설정하지 않음
 
|-  
 
|-  
|parallel_servers_target||instance target in terms of number of parallel servers||설정하지 않음
+
 
Def. = 4 * CPU_COUNT *
 
PARALLEL_THREADS_PER_CPU *
 
ACTIVE_INSTANCE_COUNT
 
  PARALLEL_DEGREE_POLICY가
 
AUTO인 경우에 한함
 
PARALLEL_MAX_SERVERS보다
 
작게 설정해야 한다.
 
|-
 
|parallel_threads_per_cpu number of parallel execution threads per CPU||설정하지 않음 (자동 설정)
 
D  Def. = OS Dependent (usually 2)
 
 
|}
 
|}

2023년 9월 6일 (수) 00:02 판

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https://www.tablesgenerator.com/mediawiki_tables#

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44 55 66
66 77 88


Type Code Type Description Acts On Level
C Check on a table Column
O Read Only on a view Object
P Primary Key Object
R Referential AKA Foreign Key Column
U Unique Key Column
V Check Option on a view Object
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Parameter Description 비고
parallel_adaptive_multi_user enable adaptive setting of degree for multiple user streams 설정하지 않음
parallel_automatic_tuning enable intelligent defaults for parallel execution parameters 설정하지 않음
Def. = FALSE
Deprecated Parameter in 11g
parallel_degree_limit limit placed on degree of parallelism
CPU
IO
integer||설정하지 않음 (자동 설정)
Def. = CPU 
parallel_degree_policy policy used to compute the degree of parallelism (MANUAL/LIMITED/AUTO)
MANUAL
LIMITED
AUTO	
설정하지 않음
Def. = MANUAL
parallel_execution_message_size - message buffer size for parallel execution if PARALLEL_AUTOMATIC_TUNING is

set to false, then 2148bytes

 if PARALLEL_AUTOMATIC_TUNING is

set to true, then 4096 bytes

16384 유지
Def. = 16384 (OSVersion Dependent)
parallel_force_local force single instance execution TRUE 설정
Def. = FALSE 
parallel_io_cap_enabled enable capping DOP by IO bandwidth 설정하지 않음
Def. = FALSE
 PARALLEL_DEGREE_LIMIT로 대체
parallel_max_servers maximum parallel query servers per instanc- CPU_COUNT를 감안하여 설정
parallel_min_percent minimum percent of threads required for parallel query 설정하지 않음
 Def. = 0 (%)
parallel_min_time_threshold threshold above which a plan is a candidate for parallelization (in seconds)
AUTO
integer||설정하지 않음
Def. = AUTO (30 seconds)
 PARALLEL_DEGREE_POLICY가 AUTO 또는 LIMITED인 경우에 한함

parallel_min_servers minimum parallel query servers per instanc- Def. = 0 유지

D 0보다 큰 값을 설정하는 경우 Large Pool에 대해 ORA-4031 발생 빈도수가 증가할 수 있음

parallel_server_instances number of instances to use for sizing OPS SGA structures 설정하지 않음