select id, user_name, create_date, msg,status from js_user_msg and user_name = #{userName} and status = #{status} where id = #{id} insert into js_user_msg id, user_name, create_date, msg, #{id}, #{userName}, #{createDate}, #{msg}, update js_user_msg user_name = #{userName}, create_date = #{createDate}, msg = #{msg}, status = #{status}, where id = #{id} update js_user_msg set status="1" where user_name = #{userName} delete from js_user_msg where id = #{id} delete from js_user_msg where id in #{id}