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A shoot-out has erupted between your MS development teams using .NET and your Linuxdevelopment teams using Java. Knowing that your database is in dang 阅读全文
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Which RMAN backup command is used to create the block-change tracking file?A. alter database create block change tracking fileB. alter database enable 阅读全文
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Which of the following RMAN structures can data from a datafile span? A. RMAN backup-set pieces spanning backup setsB. RMAN backup-set pieces within a 阅读全文
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Which of the following files cannot be backed up by RMAN? (Choose all that apply.)A. Database datafilesB. Control filesC. Online redo logsD. Database 阅读全文
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Your database has a backup that was taken yesterday (Tuesday) between 13:00 and 15:00 hours.This is the only backup you have. You have lost all the ar 阅读全文
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Which command is used to open the database after an incomplete recovery?A. alter database openB. alter database open repairlogC. alter database open r 阅读全文
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--先上结论 prior id=fid时，下一行列fid的值起始行列id的值--可以用树形结构来标识，当 prior父节点id=子节点fid时，父节点在最上--当prior子节点fid=父节点id，父节点在最下 select id,fid from tab1 start with id=100078 connect by id=prior fid 1 100078 100971 2... 阅读全文
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You have lost datafiles 1 and 3 from your database, and the database has crashed. In what ordershould you perform the following steps to recover your 阅读全文
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If a log file becomes corrupted, it may cause the database to stall. How would you correct such asituation?A. Recover the online redo log from backup. 阅读全文
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When you create a backup control file, where is the resulting file written to?A. The database user dump destination directoryB. The database diagnosti 阅读全文