IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_MRP_PEGINFODATAENTRY' AND KSQL_COL_NAME ='FMATERIALATTR') 
 ALTER TABLE T_MRP_PEGINFODATAENTRY ADD (FMATERIALATTR NVARCHAR(50) DEFAULT ' ' NOT NULL );