In which scenarios would you rebuild an index？（） when you need to disable the index usage。 when you need to change storage options。 when you need to enable index monitoring。 when you need to move the index to another tablespace。
象征性游戏（符号游戏）
设电动机某一转动方向的转速n为正，则约定电动机转矩TM与n（）的方向为（）。 一致、正向。 一致、反向。 相反、正向。 以上都不对。
Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache. What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?（） Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.。 Run the Automatic Workload Repository Monitor (ADDM).。 Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.。 Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.。
Which three SELECT statements display 2000 in the format "$2,000.00"? （） SELECT TO_CHAR(2000, '$#,###.##') FROM dual;。 SELECT TO_CHAR(2000, '$0,000.00') FROM dual;。 SELECT TO_CHAR(2000, '$9,999.00') FROM dual;。 SELECT TO_CHAR(2000, '$9,999.99') FROM dual;。 SELECT TO_CHAR(2000, '$2,000.00') FROM dual;。 SELECT TO_CHAR(2000, '$N,NNN.NN') FROM dual。
Your boss at Certkiller .com wants you to clarify Oracle 10g. Which statement regarding the contents of the V$PARAMETER view is true？（）
