IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_ER_REIMBURSEENTRY_A' AND KSQL_COL_NAME ='FWBSRCBILLTYPE') 
 ALTER TABLE T_ER_REIMBURSEENTRY_A ADD (FWBSRCBILLTYPE VARCHAR(100) DEFAULT ' ' NOT NULL);