A lock placed automatically by the DBMS is called a(n)________ lock.
A)exclusive
B)explicit
C)shared
D)implicit

Question

Quizplus · Accepted Answer

An implicit lock is placed automatically by the DBMS when a transaction modifies a data item. This lock is released automatically when the transaction is committed or rolled back. The other choices (exclusive and shared) are types of explicit locks, which are requested by the transaction explicitly using lock statements.

A Lock Placed Automatically by the DBMS Is Called A(n)________