IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_BD_EXRATETABLE' AND KSQL_COL_NAME ='FFORBIDMODIFYRATE')
 ALTER TABLE T_BD_EXRATETABLE ADD (FFORBIDMODIFYRATE CHAR(1) DEFAULT '0' NOT NULL );
