SELECT * FROM im_user_friend WHERE id_ = #{id} SELECT * FROM im_user_friend where tenant_id_ = #{tenantId} ORDER BY id_ INSERT INTO im_user_friend (id_,user_id_,friend_id_,friend_nickname_,memo_,tags_,create_time_,update_time_,tenant_id_) VALUES(#{id},#{userId},#{friendId},#{friendNickname},#{memo},#{tags},NOW(),NOW(),#{tenantId}) INSERT INTO im_user_friend (user_id_,friend_id_,friend_nickname_,tags_,memo_,create_time_,update_time_,tenant_id_) VALUES (#{teacherId},#{basicUserDto.userId},#{basicUserDto.name},#{basicUserDto.subjectName},#{basicUserDto.musicGroupName},NOW(),NOW(),#{basicUserDto.tenantId}) UPDATE im_user_friend user_id_ = #{userId}, friend_id_ = #{friendId}, friend_nickname_ = #{friendNickname}, memo_ = #{memo}, tags_ = #{tags}, update_time_ = NOW() WHERE id_ = #{id} and tenant_id_ = #{tenantId} UPDATE im_user_friend iuf LEFT JOIN sys_user su ON su.id_ = iuf.friend_id_ SET iuf.friend_nickname_ = CASE WHEN su.real_name_ IS NULL OR su.real_name_ = '' THEN su.username_ ELSE su.real_name_ END WHERE iuf.friend_nickname_ IS NULL DELETE FROM im_user_friend WHERE id_ = #{id} DELETE FROM im_user_friend WHERE user_id_ = #{teacherId} SELECT * FROM im_user_friend where tenant_id_ = #{tenantId} ORDER BY id_ SELECT COUNT(*) FROM im_user_friend where tenant_id_ = #{tenantId} SELECT * FROM im_user_friend where user_id_ = #{userId} and friend_id_ = #{friendId} LIMIT 1 SELECT iuf.*,u.real_name_,u.avatar_,u.phone_,u.user_type_,st.member_rank_setting_id_,s.name_ subject_name_,st.subject_id_list_ subject_id_ FROM im_user_friend iuf LEFT JOIN sys_user u ON iuf.friend_id_ = u.id_ LEFT JOIN student st ON st.user_id_ = u.id_ LEFT JOIN `subject` s ON s.id_ = st.subject_id_list_ WHERE iuf.user_id_ = #{userId} and (u.real_name_ like concat('%',#{search},'%') or iuf.friend_nickname_ like concat('%',#{search},'%')) SELECT iuf.*,u.real_name_,u.avatar_,u.phone_,u.user_type_,s.subject_id_list_ subject_id_,s.member_rank_setting_id_,sb.name_ subject_name_ FROM im_user_friend iuf LEFT JOIN sys_user u ON iuf.friend_id_ = u.id_ LEFT JOIN student s ON s.user_id_ = u.id_ LEFT JOIN subject sb ON s.subject_id_list_ = sb.id_ WHERE iuf.user_id_ = #{userId} AND iuf.friend_id_ = #{friendUserId}