单项选择题
A.Memory Advisors
B.Segment Advisors
C.SQL Tuning and Access Advisors
D.Automated Workload Repository (AWR)
E.Automatic Database Diagnostic Monitor (ADDM)
单项选择题 Two database users, Jack and Bill, are accessing the Certkiller STAFF table of the Certkiller DB database. When Jack modifies a value in the table, the new value is invisible to Bill. Which is the modified value invisible to Bill?()
单项选择题 You work as a database administrator for Certkiller .com. As a result of performance analysis, you created an index on theprod_namecolumn of the Certkiller prodtable, which contains about ten thousand rows. Later, you updated a product name in the table. How does this change affect the index?()
多项选择题 YouworkasadatabaseadministratorforCertkiller.com.YouhavesettheretentionperiodforAutomaticRepository(AWR)statisticstofourdaysandcollectionintervalto15minutes.YouwanttoviewthestatisticscollectedandstoredinAWRsnapshot.WhichtwomethodswouldyouusetoviewtheAWRstatistics?()