Transactions T and U are run with timestamp ordering concurrency control. Describe the… 1 answer below »

Transactions T and U are run with timestamp ordering concurrency control. Describe the information written to the log file on behalf of T and U, allowing for the fact that U has a later timestamp than T and must wait to commit after T. Why is it essential that the commit entries in the log file be ordered by timestamps? Describe the effect of recovery if the server crashes (i) between the two Commits; (ii) after both of them.

What are the advantages and disadvantages of early writing with timestamp ordering?

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