このSQL文の行数はどのように数えますか？

Question

次の質問にお答えして私を助けてください。 このSQL文の行数はどのように数えますか？

SELECT `u`.*, 
    (6371 * Acos(Cos(Radians(51.6992)) * Cos(Radians(localization_lat)) * 
           Cos(Radians(localization_lng) - Radians( 
            5.3042)) + 
       Sin 
        ( 
          Radians(51.6992)) * Sin(Radians(localization_lat)) 
      )) AS 
    `distance` 
FROM `ads` AS `u` 
WHERE (localization_zip_code LIKE '%5200%') 
     AND (date_end > '2016-03-19 19:34:43' 
      AND date_start < '2016-03-19 19:34:43') 
     AND (is_show = 1) 
     AND (is_accept_admin = 1) 
     AND (is_in_category_page = 1) 
HAVING (`distance` < '70') 
ORDER BY `distance` ASC 

Answer 1

select count(*) from tableまたはselect count(column name) from tableメソッドが返すレコードの数は、はい、私は知っているが、私は声明の中でcount（）を入れたときに私は（カウントなしながら0 resulstsを取得

SELECT Count(*), 
    `u`.*, 
    (6371 * Acos(Cos(Radians(51.6992)) * Cos(Radians(localization_lat)) * 
           Cos(Radians(localization_lng) - Radians( 
            5.3042)) + 
       Sin 
        ( 
          Radians(51.6992)) * Sin(Radians(localization_lat)) 
      )) AS 
    `distance` 
FROM `ads` AS `u` 
WHERE (localization_zip_code LIKE '%5200%') 
     AND (date_end > '2016-03-19 19:34:43' 
      AND date_start < '2016-03-19 19:34:43') 
     AND (is_show = 1) 
     AND (is_accept_admin = 1) 
     AND (is_in_category_page = 1) 
HAVING (`distance` < '70') 
ORDER BY `distance` ASC 

Answer 2

を試してみてください ）私が手この場合2つ... 1つのSQL文でcount（）とHAVINGを使用できますか？

Answer 3

サブクエリSELECT COUNT(*) FROM (...) AS mysubqueryとして実行できるはずです。したがって、次のようなものがあります。

SELECT COUNT(*) FROM (
    SELECT `u`.*, 
    (6371 * Acos(Cos(Radians(51.6992)) * Cos(Radians(localization_lat)) * 
           Cos(Radians(localization_lng) - Radians(
            5.3042)) + 
        Sin 
        (
          Radians(51.6992)) * Sin(Radians(localization_lat)) 
      )) AS 
    `distance` 
    FROM `ads` AS `u` 
    WHERE (localization_zip_code LIKE '%5200%') 
     AND (date_end > '2016-03-19 19:34:43' 
       AND date_start < '2016-03-19 19:34:43') 
     AND (is_show = 1) 
     AND (is_accept_admin = 1) 
     AND (is_in_category_page = 1) 
    HAVING (`distance` < '70') 
    ORDER BY `distance` ASC 
) AS mysubquery