多项选择题
A. selection of SQL plan baselines
B. partitioning of tables and indexes
C. creation of index-organized tables
D. creation of bitmap， function-based，and B-tree indexes
E. optimization of materialized views for maximum query usage and fast refresh
单项选择题 Before a Flashback Table operation, you execute the following command: ALTER TABLE employees ENABLE ROW MOVEMENT; Why would you need this to be executed?（）
单项选择题 YouupgradedOracleDatabase10gtoOracleDatabase11g.Howwouldthisaffecttheexistingusers’passwords？（）
多项选择题 WhichstatementsaretrueregardingSecureFileLOBs？（）