多项选择题
When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? （）(Choose two.)
A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.
相关考题
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单项选择题
Which of these appropriately describes the results of a manual SQL Tuning Advisor task?（）
A. A list of SQL statements and recommendations for tuning
B. A list of SQL statements that have been tuned by the Advisor, with before and after metrics
C. Graphs showing the actual performance improvement made by the Advisor after it implemented the recommended changes
D. All of the above -
单项选择题
To view the results of a manual SQL Tuning Advisor task, which steps should the DBA take?（）
A. From the Advisor Central home page, select the tuning task from the Advisor Tasks section.
B. From Advisor Central, choose SQL Advisors, SQL Tuning Advisors, Manual Tuning Task Results.
C. From Advisor Central, choose SQL Advisors, Manual SQL Tuning Advisors, Tuning Task Results.
D. Either B or C -
单项选择题
Ifyoulostyourentiredatabase，includingthedatabasespfile，controlfiles，onlineredologs，anddatabasedatafiles，whatkindofrecoverywouldberequiredwithRMAN？（）
A. Complete database recovery.
B. Incomplete database recovery.
C. Approximate database recovery.
D. Archived database recovery.
E. The database could not be recovered with RMAN.
