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Differentiate strict two phase locking protocol and rigorous two phase locking protocol.
In strict two phase locking protocol all exclusive mode locks taken by a transaction is held unless that transaction commits.
Rigorous two phase locking protocol needs that all locks be held until the transaction commits.
For each 1: n relationship type R involving two entities E1 and E2, we recognize the entity type (say E1) at the n-side of the relationship type R and contain primary key of the en
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assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
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