IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_MRP_PROSCHEDULE_ORDER' AND KSQL_COL_NAME ='FPLSQTY') 
 ALTER TABLE T_MRP_PROSCHEDULE_ORDER ADD (FPLSQTY DECIMAL(23,10) DEFAULT 0 NOT NULL ); 