IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_SRC_INVITESUPPLIER' AND KSQL_COL_NAME ='FSOCIETYCREDITCODE') 
 ALTER TABLE T_SRC_INVITESUPPLIER ADD (FSOCIETYCREDITCODE NVARCHAR(255) DEFAULT ' ' NOT NULL );