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Editorial Team
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Asked: 2026-06-17T16:33:55+00:00

I’m trying to create a query that will return all the rows that have

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I’m trying to create a query that will return all the rows that have a null value across all but 1 column. Some rows will have more than one null entry somewhere. There is one column I will want to exclude, because at this moment in time all of the entries are null and it is the only column that is allowed to have null values. I am stuck because I don’t know how to include all of the columns in the WHERE.

SELECT *
FROM Analytics
WHERE * IS NULL

Alternatively, I can do a count for one column, but the table has about 67 columns.

SELECT COUNT(*)
FROM Analytics
WHERE P_Id IS NULL
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1 Answer

  1. Editorial Team

    In SQL Server you can borrow the idea from this answer

    ;WITH XMLNAMESPACES('http://www.w3.org/2001/XMLSchema-instance' as ns)
SELECT *
FROM   Analytics
WHERE  (SELECT Analytics.*
        FOR xml path('row'), elements xsinil, type
        ).value('count(//*[local-name() != "colToIgnore"]/@ns:nil)', 'int') > 0

    SQL Fiddle

    Likely constructing a query with 67 columns will be more efficient but it saves some typing or need for dynamic SQL to generate it.

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