删除2017对应的信息\n假如账套号是001\n以下语句请参考\ndelete from ufsystem..ua_log where cacc_id=001 and iyear=2017\ndelete from ufsystem..ua_task where cacc_id=001 and iyear=2017\ndelete from ufsystem..ua_holdauth where cacc_id=001 and iyear=2017\ndelete from ufsystem..ua_period where cacc_id=001 and iyear=2017\ndelete from ufsystem..ua_account_sub where cacc_id=001 and iyear=2017