select id, session_id, type, user_id,target_id from ard_call_session_user SELECT acsu.ID, acsu.session_id, acsu.TYPE, acsu.user_id, acsu.target_id, u.nick_name, u.avatar, u1.nick_name AS target_nick_name, u1.avatar AS target_avatar FROM ard_call_session_user acsu LEFT JOIN sys_user u ON u.user_id = acsu.user_id LEFT JOIN sys_user u1 ON u1.user_id = acsu.target_id and session_id = #{sessionId} and type = #{type} and acsu.user_id = #{userId} and target_id = #{targetId} where session_id = #{sessionId} and acsu.user_id = #{userId} where id = #{id} insert into ard_call_session_user id, session_id, type, user_id, target_id, #{id}, #{sessionId}, #{type}, #{userId}, #{targetId}, update ard_call_session_user session_id = #{sessionId}, type = #{type}, user_id = #{userId}, target_id = #{targetId}, where id = #{id} delete from ard_call_session_user where id = #{id} delete from ard_call_session_user where id in #{id} select session_id from ard_call_session_user where user_id = #{userId} and target_id = #{targetId} and type = #{type} select session_id from ard_call_session_user where target_id = #{targetId} limit 1 delete from ard_call_session_user where session_id = #{sessionId}