Answer / Ravi Rao Gautam

Lock hints in SQL Server are clauses used to control how data is locked during query execution. By specifying a lock hint, you can instruct the database engine to use different isolation levels or lock modes, affecting concurrency and performance. Common lock hints include READUNCOMMITTED, READCOMMITTED, REPEATABLE_READ, SERIALIZABLE, UPDLOCK, HOLDLOCK, and TABLOCK.

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