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For the V$SESSION_LONGOPS view， you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（）
- A、 Set the CPU time per call in the users profile.
- B、 Set the CPU time per session in the users profile.
- C、 Set the CPU levels for the user’s group using Resource Manager.
- D、 Set the TIMED_STATISTICS parameter to TRUE in the parameter file.
参考答案
更多 “For the V$SESSION_LONGOPS view， you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（）A、 Set the CPU time per call in the users profile.B、 Set the CPU time per session in the users profile.C、 Set the CPU levels for the user’s group using Resource Manager.D、 Set the TIMED_STATISTICS parameter to TRUE in the parameter file.” 相关考题
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REBUILDB
CASCADEC
TRUNCATED
ROW MOVEMENTE
SHRINK SPACE COMPACTF
SHRINK SPACE CASCADE
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SQLServer:Buffer Manager B
SQLServer:Access Methods C
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The trace fileB
The fixed viewsC
The data dictionary viewsD
The operating system log fieldsE
The dynamic performance views.
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Java poolB
Large poolC
Shared poolD
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Library cacheF
Redo log bufferG
Data dictionary cacheH
Database buffer cache
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REBUILDB
CASCADEC
TRUNCATED
ROW MOVEMENTE
SHRINK SPACE COMPACTF
SHRINK SPACE CASCADE
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单选题The database users are connecting to the PROD database from different applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective？ （）A
set the SESSIONS to 1 in the parameter fileB
grant SINGLE SESSION privilege to all of the usersC
set the SESSIONS_PER_USER to 1 in the users’ profileD
grant RESTRICTED SESSION privilege to all of the database usersE
create a role with SINGLE SESSION privilege and assign the role to the users
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