Oracle OCP 1Z0 053 Q259(STATISTICS_LEVEL)
259.Which setting enables the baselines by default in Oracle Database 11g?
A. setting the STATISTICS_LEVEL parameter to TYPICAL
B. adding filters to the Automatic Database Diagnostic Monitor (ADDM)
C. enabling Automated Maintenance Task using Oracle Enterprise Manager
D. setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to TRUE
Answer: A
STATISTICS_LEVEL引數有三個值,ALL, TYPICAL, BASIC。預設TYPICAL。
如果為BASIC, 會禁用掉很多功能,如AWR, ADDM等。
參考:https://docs.oracle.com/cd/B14117_01/server.101/b10755/initparams208.htm
A. setting the STATISTICS_LEVEL parameter to TYPICAL
B. adding filters to the Automatic Database Diagnostic Monitor (ADDM)
C. enabling Automated Maintenance Task using Oracle Enterprise Manager
D. setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to TRUE
Answer: A
STATISTICS_LEVEL引數有三個值,ALL, TYPICAL, BASIC。預設TYPICAL。
如果為BASIC, 會禁用掉很多功能,如AWR, ADDM等。
參考:https://docs.oracle.com/cd/B14117_01/server.101/b10755/initparams208.htm
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