多项选择题
You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
A. Every SQL statement in the STS is considered only once for execution.
B. The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics.
C. The execution plan and execution statistics are computed for each SQL statement in the STS.
D. The effects of DDL and DML are considered to produce the execution plan and execution statistics.
相关考题
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多项选择题
The database is configured in ARCHIVELOG mode and regular complete database backups are taken. Theloss of which two types of files may require a recovery with the RESETLOGS option? ()(Choose two)
A. Control files
B. Password files
C. Inactive online redo log file
D. Archived log files required to perform recovery
E. Newly created tablespace which is not backed up -
单项选择题
You observed the following output for a user session: What do you infer from the preceding output?()
A. Resumable set for session with sid 18
B. The user session has entered into a deadlock
C. The database instance is enabled to use asynchronous commit
D. The threshold warning limit is exceeded for the tablespace that is used by the user session
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多项选择题
WhichstatementsaretrueregardingtheQueryResultCache?()
A. It can be set at the system, session, or table level.
B. It is used only across statements in the same session.
C. It can store the results from normal as well as flashback queries.
D. It can store the results of queries based on normal,temporary,and dictionary tables.
