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What are SQL Query Hints?

July 5, 2014 Leave a comment

SQL server usually selects the best query plan required to execute a T-SQL query. However, there might be cases where the plans selected are not the best. In such situations, you can use the query hints to suggest the best possible plan/method of executing a query. The Query hints can be applied on all operators in a query. These hints apply to SELECT, DELETE, INSERT, UPDATE and MERGE. You can use the Query hints in the OPTION clause after the query.

Few commonly used Query hints with examples are as below.

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