多项选择题
A. It can be set at the system, session, or table level.
B. It is used only across statements in the same session.
C. It can store the results from normal as well as flashback queries.
D. It can store the results of queries based on normal, temporary, and dictionary tables.
单项选择题 You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set the PGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance. Which statement about the result is true?（）
单项选择题 You are tuning RMAN to optimize performance.You want tape I/O to be asynchronous when you perform tape backups. Which action should you take?（）
单项选择题 Which statement about the enabling of table compression in Oracle Database 11g is true?（）