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Home > Forums > Programmers > DBMS Packages > Microsoft SQL Server: Programming Forum

Check Multiple Columns for Multiple values

thread183-1683966
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dhulbert (TechnicalUser)
23 May 12 10:43

I need to check 20 columns in th esame table for any 1 of 15 differnet codes.

I can obviously do it with a very messy nested casae statement but can anyone think of a neater/more efficient version?

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gmmastros (Programmer)
23 May 12 11:20
I would probably write this as a union all query, like this:

CODE

Select * From ( Select IdColumn, Col1 As SearchColumn From TableX Union All Select IdColumn, Col2 From TableX Union All Select IdColumn, Col3 From TableX Union All Select IdColumn, Col4 From TableX Union All etc.... ) As Searches Where Searches.SearchColumn In ('x','y','z')

Or... if you have the different codes in a table...

CODE

Select * From ( Select IdColumn, Col1 As SearchColumn From TableX Union All Select IdColumn, Col2 From TableX Union All Select IdColumn, Col3 From TableX Union All Select IdColumn, Col4 From TableX Union All etc.... ) As Searches Inner Join CodesTable On Searches.SearchColumn = CodesTable.CodeValue

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