IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_ER_VEHICLECHECKINGBILL_A' AND KSQL_COL_NAME ='FTRAVELWAYS') 
 ALTER TABLE T_ER_VEHICLECHECKINGBILL_A ADD (FTRAVELWAYS VARCHAR(30) DEFAULT ' ' NOT NULL );