a.id AS "id", a.userid1 AS "userid1", a.userid2 AS "userid2", a.msg AS "msg", a.status AS "status", a.create_date AS "createDate" INSERT INTO iim_chat_history( id, userid1, userid2, msg, status, create_date ) VALUES ( #{id}, #{userid1}, #{userid2}, #{msg}, #{status}, #{createDate} ) UPDATE iim_chat_history SET userid1 = #{userid1}, userid2 = #{userid2}, msg = #{msg}, status = #{status}, create_date = #{createDate} WHERE id = #{id} DELETE FROM iim_chat_history WHERE id = #{id}