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