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【单选题】

You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）

A、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING

B、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE

C、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE

D、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING

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更多“You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）”相关的问题
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A、I hope I have not kept you waiting for long.  B、I hope I have not kept you waiting for a short time.  C、I hope I have not kept you waiting for a while.  D、I hope I have not kept you waiting for a little time.  

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第2题
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第3题
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A、not to give  B、not to have given  C、not having given  D、not giving  

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第4题
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第5题
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第7题
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第8题
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第9题
[单选题] You executed the following commands in a database session: What could have caused the recycle bin to clean up?（）

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