Oracle 11G OCP 1Z0-053 339

（339）Why would you run the delete obsolete command? (Choose all that apply.)

A. To remove missing backup set pieces physically from disk

B. To remove metadata related to backup set pieces in the control file and the recovery catalog

C. To mark as deleted records in the control file and the recovery catalog associated with obsolete backup sets

D. To delete backup set pieces associated with backups that are no longer needed due to retention criteria

E. To remove old versions of RMAN backups

答案：（C、D）

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/17013648/viewspace-1278909/，如需轉載，請註明出處，否則將追究法律責任。