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  1. saloufeng

    What is the equivalent in Interbase for Isnull in SQL server?

    Use UDF ! I test this in Delphi,that's working! function udf_isnull(A:pchar;B:pchar):PChar;cdecl; begin if strpas(A)='' then result:=B else result:=A; end; DECLARE EXTERNAL FUNCTION udf_isnull CSTRING(256) CHARACTER SET NONE, CSTRING(256) CHARACTER SET NONE RETURNS CSTRING(256) CHARACTER SET...

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