SELECT * FROM ReplyMessage WHERE leavemessageid = #{leavemessageid} ORDER BY created desc select a.*,t.avatar,t.nickname,t.truename from ReplyMessage a,v_baseuser t where a.uid = t.studentid and a.leavemessageid = #{leavemessageid} order by created asc select a.*,t.avatar,t.nickname,t.truename from ReplyMessage a,v_univbaseuser t where a.uid = t.studentid and a.leavemessageid = #{leavemessageid} order by created asc select * from replymessage t,student s where t.uid = s.studentid and t.leavemessageid = #{leavemessageid} INSERT INTO leavemessage(leavemessageid,uid,toperson,created,isquiet,content,areaid) VALUES ( (SELECT NEXTVAL('seq_leavemessageid')), #{leavemessageid}, #{uid},#{toperson},#{created},#{isquiet},#{content},#{areaid}) delete from leavemessage where leavemessageid = #{leavemessageid}; delete from replymessage where leavemessageid = #{leavemessageid} SELECT * FROM LeaveMessage WHERE leavemessageid = #{leavemessageid}