	-- 领料差异分摊增加领域
IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_IM_MDC_BACKDIFSHARE' AND KSQL_COL_NAME ='FPRODUCTIONDOMAIN')
ALTER TABLE T_IM_MDC_BACKDIFSHARE ADD (FPRODUCTIONDOMAIN NVARCHAR(5) DEFAULT ' ' NOT NULL );