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#602656
SELECT WelderIdAscii = CASE WHEN len(WelderId) = 2 THEN ( ASCII(WelderId) * 10000 ) + ( ASCII(SUBSTRING(WelderId,2,1) ) ) WHEN len(WelderId) = 3 THEN ( ASCII(WelderId) * 10000 ) + ( ASCII(SUBSTRING(WelderId,2,1) ) * 100 ) + ( ASCII(SUBSTRING(WelderId,3,1) ) ) END,WelderIdFROM #lettersORDER BY WelderIdAscii DESC