单项选择题
What happens when you run the SQL Tuning Advisor with limited scope？（）
A. Access path analysis is not performed for SQL statements.
B. SQL structure analysis is not performed for SQL statements.
C. SQL Profile recommendations are not generated for SQL statements.
D. Staleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor.
相关考题
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单项选择题
WhatistheadvantageofsettingtheASM-preferredmirrorreadfortheStretchclusterconfiguration？（）
A. It improves resync operations.
B. This feature enables much faster file opens.
C. It improves performance as fewer extent pointers are needed in the shared pool.
D. It improves performance by reading from a copy of an extent closest to the node. -
单项选择题
You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table？（）
A. The Automatic Memory Manager （AMM）
B. The SQL Tuning Advisor
C. The Segment Advisor
D. The SQL Access Advisor -
单项选择题
View the following SQL statements： Transaction T1 INSERT INTO hr.regions VALUES （5，’Pole’）；COMMIT； Transaction T2 UPDATE hr.regions SET region_name=’Poles’ WHERE region_id = 5； COMMIT； Transaction T3 UPDATE hr.regions SET region_name=’North and South Poles’ WHERE region_id = 5； You want to back out transaction T2. Which option would you use？（）
A. It is possible，but transaction T3 also backs out.
B. It is possible with the NOCASCADE_FORCE option.
C. It is possible with the NONCONFLICT_ONLY option.
D. It is not possible because it has conflicts with transaction T3.
