--委外采购核销记录增加单向核销字段fissingle
IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_IM_OSWFRECORD' AND KSQL_COL_NAME ='FISSINGLE') 
 ALTER TABLE T_IM_OSWFRECORD ADD (FISSINGLE CHAR(1) DEFAULT '0' NOT NULL );