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【判断题】
磁盘设备的 I/O 控制主要是采取 DMA 方式。A.
正确
B.
错误
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【简答题】A. avoid B. delete C. reserve D. handle I want to ______ speaking to him until I've got more details.
【单选题】You have joined a new organization as a Database Administrator. The Security Administrator in your organization has kept human errors， such as erroneously dropping users， tables， and important data， t...
A.
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
B.
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement while the database is up and running.
C.
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command. Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
D.
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
【简答题】In this your new job, remember you did _______ your job; and not your job, you. You may be _______ for the new job; but your company is luckier for ________ you. Congratulations.
【简答题】A. avoid B. delete C. reserve D. handle Computers can ______ huge amounts of data.
【简答题】In your new job you will perform a variety of _____.
【判断题】On e reaso n tha t government s ma y fin d i t usefu l t o sponso r universitie s an d basi c researc h i s tha t t o a larg e extent knowledg e i s generall y a privat e good.
A.
正确
B.
错误
【简答题】A. avoid B. delete C. reserve D. handle Saturdays are busy, so it's a good idea to ________a table in advance.
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