Consider a transaction T1 that committed prior to checkpoint. The <T1 commits> record appears in the log before the <checkpoint> record. Any modifications made by T1 must have been written to the stable storage either with the checkpoint or prior to it. Thus at recovery time ______

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Consider a transaction T1 that committed prior to checkpoint. The <T1 commits> record appears in the log before the <checkpoint> record. Any modifications made by T1 must have been written to the stable storage either with the checkpoint or prior to it. Thus at recovery time ______

1.There is a need to perform an undo operation on T1

2.There is a need to perform a redo operation on T1

3.There is no need to perform an undo and redo operation on T1

4.All of the Mentioned

Posted Date:-2022-03-25 15:52:56

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