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How can I add my answer to the following question?

Hidden Features of SQL Server

The question is about the hidden features in SQL Server. Now I have a trick to give alias name to subquery columns. This trick is not present in existing answer

Here is the query.

SELECT *
FROM   (SELECT 1,'a',NULL,NULL
        UNION ALL
        SELECT 1,NULL,'d',NULL
        UNION ALL
        SELECT 1,NULL,NULL,'c'
        UNION ALL
        SELECT 1,NULL,'d',NULL) a (groups, a, b, c)

How do I add this as an answer to the above mentioned question or can a moderator add this answer?

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1 Answer 1

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