单项选择题 Note the following structures in your database server: 1.Extents 2.OS Blocks 3.Tablespace 4.Segments 5.Oracle Data Block Which option has the correct arrangement of these structures from the smallest to the largest()
单项选择题 You executed this command to create a temporary table: SQL> CREATE GLOBAL TEMPORARY TABLE report_work_area (startdate DATE, enddateDATE, class CHAR(20)) ON COMMIT PRESERVE ROWS; Which statement is true about the rows inserted into the REPORT_WORK_AREA table during a transaction()
单项选择题 Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command:LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance()