Q In multiuser database, if two users wish to update the same record at the same time, they are prevented from doing so by- [NET-P-II-J-12-7-RDBMS]

A. Jamming

B. Password

C. Documentation

D. Record Lock

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Ans: D

Description:

Record Lock:

It is a technique to preventing simultaneous access to data in a database, to prevent inconsistent result.

For Example, same record access by two user at the same time managed by Record Lock operation.

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