update ufsystem..UA_Identity set ifatherid=( select max(cast(right(id,7) as int)) FROM ufdata_999_2002..RdRecord) WHERE (cAcc_Id = '999') AND (cVouchType = 'rd') update ufsystem..UA_Identity set ichildid=( select max(cast(right(autoid,7) as int)) FROM ufdata_999_2002..RdRecords ) WHERE (cAcc_Id = '999') AND (cVouchType = 'rd') 请参考运用。