You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL> FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（） You must configure OMF in your database.。 You must enable block change tracking feature in your database.。 You must enable ROW MOVEMENT feature on the ORDERS table.。 You must use the Flashback Version Query before using the Flashback Table feature.。
A customer has an LPAR with 4 dedicated cores on a POWER7 server with SMT4 enabled. How many logical processors are presented to an application running on this LPAR?（） 4。 8。 16。 32。
天然水中，按其颗粒大小可分为（）、（）和（）。
在事件处理程序中定义的变量，其生命周期仅限于该过程。
Which two operations are NOT performed by the DUPLICATE command in Recovery Manager (RMAN) whileduplicating a running database? （）(Choose Two) Creating the control file for the duplicate database。 Restoring the target data files to the duplicate database。 Performing complete recovery using all available backups。 Generating a new, unique DBID for the duplicate database。 Copying the online redo log files from the target database to the duplicate database。
Based on which two conditions can master Preventive Maintenance （PM） schedules be created？（）
