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Asked: 2026-06-11T11:42:26+00:00

Does SQL Server support IS DISTINCT FROM statement which is SQL:1999 standard? E.g. the

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Does SQL Server support IS DISTINCT FROM statement which is SQL:1999 standard? E.g. the query

SELECT * FROM Bugs WHERE assigned_to IS NULL OR assigned_to <> 1;

can be rewritten using IS DISTINCT FROM

SELECT * FROM Bugs WHERE assigned_to IS DISTINCT FROM 1;
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1 Answer

  1. Editorial Team

    IS [NOT] DISTINCT FROM is scheduled to be included in SQL Server 2022 (currently in public preview), see:

    For earlier versions of SQL Server, the following SO question explains how to work around this issue with equivalent (but more verbose) SQL Server expressions:

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