SELECT
          a.*
          , (SELECT name FROM best_cate WHERE idx = a.cate1) AS cate1_name
          , (SELECT name FROM best_cate WHERE idx = a.cate2) AS cate2_name
          , (SELECT name FROM best_province WHERE idx = a.province) AS province_name
          , (SELECT code FROM best_province WHERE idx = a.province) AS province_code
          , (SELECT name FROM best_city WHERE idx = a.city) AS city_name
          , (SELECT code FROM best_city WHERE idx = a.city) AS city_code
        FROM
          best a
        WHERE
          a.idx = '2641'