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【单选题】
含27%肉,带馅料的面食(比如,饺子)应该归入品目( )。A.
1602
B.
2106
C.
1902
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举一反三
【单选题】You are maintaining the SALES database for an organization. You have enabled the Flashback Database feature and want to estimate the flashback space required for future operations. Which view would y...
A.
V$DATABASE
B.
V$FLASHBACK_DATABASE_STAT
C.
V$FLASHBACK_DATABASE_LOG
D.
V$RECOVERY_FILE_DEST
【多选题】You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback？（）
A.
Oracle Flashback uses undo information to construct consistent data.
B.
You can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session.
C.
You can only use Oracle Flashback view of the data if the required records are still in the online redo log files.
D.
Oracle Flashback lists the DML that was executed during the period you identify when initiating your session.
【单选题】You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1： DROP FLAS...
A.
The Flashback Archive FLA1 is dropped only if it is empty.
B.
The tablespace having Flashback Archive is dropped.
C.
The Flashback Archive FLA1 is dropped after moving the existing data in it to the default Flashback Archive.
D.
The Flashback Data Archive and historical data are dropped.
【简答题】( ) is the most important form of business organization in U.S, a corporation is a ( )person, seperate and dinstinct from its ( ).
【简答题】( ) is the most imporatant form of business organization in u.s. A corporation is a ( ) person, seperate and distinct from its ( ).
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