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Editorial Team
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Asked: 2026-05-13T05:25:18+00:00

SELECT col1, col2, dbo.myFunc(@param1, @param2, col1, col2) FROM theTable How do I add a

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 SELECT col1, col2, dbo.myFunc(@param1, @param2, col1, col2) FROM theTable

How do I add a WHERE here to the result of the function dbo.myFunc, like WHERE resultOfMyFunc > 10 for example?

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1 Answer

  1. Editorial Team

    Just use the exact function call you use in the select in the query – the query optimizer should cache the value and use it in both places without re-evaluating the function (this is true for MSSQL, at least).

    E.g.,

    SELECT col1, col2, myFunc(@arg1, @arg2, col1, col2)
FROM myTable
WHERE myFunc(@arg1, @arg2, col1, col2) > 10
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