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Which of the following is the time of temporal data that record when a fact was recorded in a database?

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Which of the following is the time of temporal data that record when a fact was recorded in a database?

(a) Transaction time

(b) Valid time

(c) Enter time

(d) Exit time

I have been asked this question during an interview.

This interesting question is from Normal Forms topic in chapter Relational Database Design of RDBMS

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Right answer is (a) Transaction time

For explanation: The transaction time is the time of temporal data that records when a fact was recorded in a database.

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