SELECT * FROM im_group WHERE id_ = #{id} SELECT * FROM im_group WHERE id_ = #{id} for update SELECT * FROM im_group ORDER BY id_ INSERT INTO im_group (id_,name_,introduce_,member_num_,memo_,tags_,img_,type_,create_time_,update_time_) VALUES(#{id},#{name},#{introduce},#{memberNum},#{memo},#{tags},#{img},#{type},#{createTime},#{updateTime}) UPDATE im_group member_num_ = #{memberNum}, id_ = #{id}, tags_ = #{tags}, introduce_ = #{introduce}, update_time_ = #{updateTime}, memo_ = #{memo}, name_ = #{name}, img_ = #{img}, type_ = #{type}, create_time_ = #{createTime}, WHERE id_ = #{id} UPDATE im_group_member SET nickname_ = #{nickName} WHERE user_id_ = #{userId} UPDATE im_user_friend SET friend_nickname_ = #{nickName} WHERE friend_id_ = #{userId}; UPDATE im_group ig LEFT JOIN (SELECT COUNT(id_) num_,im_group_id_ FROM im_group_member GROUP BY im_group_id_) igm ON ig.id_ = igm.im_group_id_ SET member_num_ = igm.num_ WHERE ig.id_ = igm.im_group_id_ DELETE FROM im_group WHERE id_ = #{id} SELECT * FROM im_group ORDER BY id_ SELECT COUNT(*) FROM im_group SELECT ig.* FROM im_group_member igm left join im_group ig on igm.im_group_id_ = ig.id_ where igm.user_id_ = #{userId} and (ig.name_ like concat('%',#{search},'%') or ig.tags_ like concat('%',#{search},'%')) SELECT igm.*,u.avatar_,case when find_in_set('STUDENT',u.user_type_) then u.username_ else u.real_name_ end username_ ,CASE WHEN s.member_rank_setting_id_ IS NULL THEN 0 ELSE 1 END member_rank_setting_id_ FROM im_group_member igm left join sys_user u on igm.user_id_ = u.id_ LEFT JOIN student s ON s.user_id_ = u.id_ where igm.im_group_id_ = #{imGroupId} SELECT igm.*,u.avatar_,case when find_in_set('STUDENT',u.user_type_) then u.username_ else u.real_name_ end username_ FROM im_group_member igm left join sys_user u on igm.user_id_ = u.id_ where igm.im_group_id_ = #{imGroupId} and igm.user_id_ = #{userId}