[ABAP구문] PERFORM

   PERFORM form IN PROGRAM prog     
   	CHANGING p1 p2 p3 ...     
   	IF FOUND     
   	TABLES tabla1 tabla2 ...     
   	USING p1 p2 p3 ...   
   	
   PERFORM form1(prog2)     
   	CHANGING p1 p2 p3 ...     
   	IF FOUND     
   	TABLES tabla1 tabla2 ...     
   	USING p1 p2 p3 ...   
   
   PERFORM form1     
   	USING    p1 p2 p3 ...     
   	CHANGING p1 p2 p3 ...     
   	TABLES   tabla1 tabla2 ...   
   
   PERFORM n OF form1 form2 form3 ...   
   
   PERFORM n ON COMMIT     
   	LEVEL v1