select l.id as id, u.user_id as user_id, coalesce(l.username, u.user_name) as username, coalesce(l.nickname, u.nick_name) as nickname, l.remark as remark, l.create_by as create_by, l.create_time as create_time, l.update_by as update_by, l.update_time as update_time, l.del_flag as del_flag from sys_user u inner join sys_user_role ur on u.user_id = ur.user_id inner join sys_role r on r.role_id = ur.role_id and (r.role_key = 'librarian' or r.role_name = '图书管理员') left join tb_library_librarian l on l.user_id = u.user_id and l.del_flag = '0' u.del_flag = '0' and u.user_id = #{userId} and ( u.user_name like concat('%', #{username}, '%') or (l.username is not null and l.username like concat('%', #{username}, '%')) ) and ( u.nick_name like concat('%', #{nickname}, '%') or (l.nickname is not null and l.nickname like concat('%', #{nickname}, '%')) ) order by coalesce(l.id, u.user_id) desc insert into tb_library_librarian(user_id, username, nickname, remark, create_by, create_time, del_flag) values (#{userId}, #{username}, #{nickname}, #{remark}, #{createBy}, #{createTime}, '0') delete from tb_library_librarian where user_id in #{uid} select count(1) from tb_library_librarian where user_id = #{userId}