One of the user sessions was terminated abnormally in the middle of a transaction. What does Oracle database do to recover it?()

A . uses undo data for roll forward B . uses Flashback Log for recovery C . uses online redo logs to roll back D . uses undo data to roll back the transaction E . uses Recovery Manager (RMAN) to roll back F . uses the System Monitor (SMON) background process to perform instance recovery

时间:2022-09-23 22:07:41 所属题库:1Z0-042题库

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