select * from lab_reqsteplog where sqh = #{sqh} and xh=#{xh} select * from lab_reqsteplog where sqh = #{sqh} select MAX(xh) from lab_reqsteplog where sqh = #{sqh} insert into lab_reqsteplog (sqh, xh, zt, userid, changedate, logdate, comname, logdate, comip, bz) values (#{sqh}, #{xh}, #{zt}, #{userid}, #{changedate}, #{logdate}, #{comname}, #{logdate}, #{comip}, #{bz})