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 Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL> SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）
单项选择题 Which statement can be an inference from the output?（）