INSERT INTO im_user_friend (id_,user_id_,friend_id_,friend_nickname_,memo_,tags_,create_time_,update_time_)
VALUES(#{id},#{userId},#{friendId},#{friendNickname},#{memo},#{tags},NOW(),NOW())
INSERT INTO im_user_friend (user_id_,friend_id_,friend_nickname_,tags_,memo_,create_time_,update_time_)
VALUES (#{teacherId},#{basicUserDto.userId},#{basicUserDto.name},#{basicUserDto.subjectName},#{basicUserDto.musicGroupName},NOW(),NOW())
UPDATE im_user_friend
user_id_ = #{userId},
friend_id_ = #{friendId},
friend_nickname_ = #{friendNickname},
memo_ = #{memo},
tags_ = #{tags},
update_time_ = NOW()
WHERE id_ = #{id}
DELETE FROM im_user_friend WHERE id_ = #{id}
DELETE FROM im_user_friend WHERE user_id_ = #{teacherId}