你可能感興趣的試題

What will be the result of using the SQL> DROP USER SCOTT CASCADE； command？（）

A. The user， Scott， is dropped， all the objects in Scott’s schema are placed in the Recycle Bin， and the objects that are already in the Recycle Bin are dropped.
B. The user， Scott， is dropped， all the objects in Scott’s schema are placed in the Recycle Bin， and all the objects in the Recycle Bin， belonging to the user Scott， are not dropped.
C. The user， Scott， is dropped， all the objects in the Scott’s schema are not placed in the Recycle Bin， and the objects in the Recycle Bin， belonging to the user， Scott， are not dropped.
D. The user， Scott， is dropped， all the objects in Scott’s schema are not placed in the Recycle Bin， and the objects in the Recycle Bin are dropped.

單項(xiàng)選擇題

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？（）

A. You must configure OMF in your database.
B. You must enable block change tracking feature in your database.
C. You must enable ROW MOVEMENT feature on the ORDERS table.
D. You must use the Flashback Version Query before using the Flashback Table feature.

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你可能感興趣的試題

What will be the result of using the SQL> DROP USER SCOTT CASCADE； command？（）

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What will be the result of using the SQL> DROP USER SCOTT CASCADE； command？（）