DF043: The NOLOCK hint is used.
The topic describes the DF043 T-SQL code analysis rule.
Category
BEST PRACTICE
Message
The NOLOCK hint is used.
Description
Consider changing the isolation level instead of using the NOLOCK hint.
Additional information
It is impossible to specify query hints in an INSERT statement, except when a SELECT clause is used inside the statement. Query hints are only allowed in the top-level query, not in subqueries.
NOLOCK can be used in the OPTION(TABLE HINT(ExposedName, NOLOCK)) clause if it has already been specified in the WITH(NOLOCK) clause.
Noncompliant code example
SELECT * FROM dbo.DemoTable WITH(NOLOCK)
Compliant solution
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
SELECT * FROM dbo.DemoTable
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