你可能感興趣的試題

Which three statements about performance analysis by SQL Performance Analyzer are true？（）

A. It detects changes in SQL execution plans.
B. It produces results that can be used to create the SQL plan baseline.
C. The importance of SQL statements is based on the size of the objects accessed.
D. It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
E. It shows only the overall impact on workload and not the net SQL impact on workload.

單項選擇題

You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）

A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING

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You want to back up your 100-GB database on a remote tape device. You are required to ensure that minimum network bandwidth is consumed while transferring the backups to the tape device. The current consumption of your CPU is approximately 40 percent.Which type of backup should you perform?（）

你可能感興趣的試題

Which three statements about performance analysis by SQL Performance Analyzer are true？（）

You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）

Which three statements about performance analysis by SQL Performance Analyzer are true？（）