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During __________ phase, the system reads data and stores them in variables local to the transaction.

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During __________ phase, the system reads data and stores them in variables local to the transaction.

(a) Read phase

(b) Validation phase

(c) Write phase

(d) None of the mentioned

I have been asked this question in an online quiz.

Question is taken from Validation Based Protocols topic in section Concurrency Control of RDBMS

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Right option is (a) Read phase

Best explanation: During the read phase, the system reads data and stores them in variables local to the transaction. It performs all write operations on temporary local variables without updates on the actual database.

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