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Basically 'column1' 'column2' 'column3' is different than 'column1,column2,column3' So, you must compare the whole string: BEGIN IF (col_names = 'column1,column2,column3') THEN . . . If you want to compare each variable separately, then you must pass them separate in your procedure call: Call: call hussian('prstate','table_1','column1','column2','...


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