Thanks, but is that DB2 cannot use the syntax " IN (('Result1A','Resutl1B'),('Result2A','Result2B')) " ?
It was because I use program to call this statement with Oracle enironment and "(('Result1A','Resutl1B'),('Result2A','Result2B')) " is put in the string, that mean
a function do this:
string_result = (dynamic get the result set e.g "('Result1A','Resutl1B'),('Result2A','Result2B ') ( ...).......or many many")
and then call this statement
Select * from TableA where (ColA, ColB) IN (string_result);
It is difficult to extract each set of result and put in the statement with "OR".
But I need to convert this function with DB2 environment.