IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_ER_DAILYVEHICLEBILL' AND KSQL_COL_NAME IN ('FUNAUDITMSG')) 
 ALTER TABLE T_ER_DAILYVEHICLEBILL ADD (FUNAUDITMSG NVARCHAR(1000) DEFAULT ' ' NOT NULL );