id,username,password,email,create_time,update_time,create_user,update_user,is_deleted select from t_user is_deleted = 0 and username like CONCAT('%',#{dto.username},'%') and email like CONCAT('%',#{dto.email},'%') SELECT DISTINCT p.* FROM t_permission p JOIN t_role_permission rp ON p.id = rp.permission_id JOIN t_user_role ur ON rp.role_id = ur.role_id WHERE ur.user_id = #{userId} select from t_user username=#{username}