问题描述 sql的运行报错求解决!!!!!!!!!!!!!!!!!!!! update( select t.hosid t_hosid,t.devid t_devid,c.hosid chosid,c.devid cdevid,c.checkflag checkflag from ccyl_tran_2iccd t,boc_tran_csp c where c.checkflag is null and (t.iccd_time||t.iccd_flow) = c.iccd_traceno an