如何獲得在設置

我有一個產生一個結果集的SQL查詢結果每種類型的記錄數，如下圖所示：如何獲得在設置

(SELECT dv.venue as venue, pglr.users_oauth_uid as user_id, pgl.date as guest_list_date 
    FROM promoters_guest_lists pgl 
    JOIN users_promoters_guest_list_authorizations upgla 
    ON pgl.users_promoters_guest_list_authorizations_id = upgla.id 
    JOIN promoters_guest_lists_reservations pglr 
    ON pgl.id = pglr.promoters_guest_lists_id 
    JOIN promoters_venues pv 
    ON pv.id = upgla.promoters_venues_id 
    JOIN data_venues dv 
    ON dv.id = pv.venue_id 
    WHERE upgla.deactivated = 0) 

    UNION ALL 

    (SELECT dv.venue as venue, pglre.oauth_uid as user_id, pgl.date as guest_list_date 
    FROM promoters_guest_lists pgl 
    JOIN users_promoters_guest_list_authorizations upgla 
    ON pgl.users_promoters_guest_list_authorizations_id = upgla.id 
    JOIN promoters_guest_lists_reservations pglr 
    ON pgl.id = pglr.promoters_guest_lists_id 
    JOIN promoters_guest_lists_reservations_entourages pglre 
    ON pglr.id = pglre.promoters_guest_lists_reservations_id 
    JOIN promoters_venues pv 
    ON pv.id = upgla.promoters_venues_id 
    JOIN data_venues dv 
    ON dv.id = pv.venue_id 
    WHERE upgla.deactivated = 0) 
    ORDER BY 1 

Estate 504405294 2011-08-30 
Estate 504405294 2011-09-20 
Estate 504405294 2011-09-19 
Estate 504677586 2011-08-30 
Estate 100002624783324 2011-08-30 
Estate 100002624783324 2011-09-20 
Estate 1451950133 2011-09-19 
Estate 1634269784 2011-09-19 
Estate 100002624783324 2011-09-19 
Royale 504405294 2011-08-28 
Royale 504405294 2011-09-04 
Royale 100002624783324 2011-08-28 
Royale 1634269784 2011-09-04

我不知道是否有可能返回所有的簡單計數對於第一列中的每個值，等於第一列中的某個值的記錄。總的來說，我預計在第一列中有6個唯一值，但它在查詢執行之間可能會有所不同。

來源

2011-09-18 Casey Flynn

這不就是'group by'SQL語句的原因嗎？如下所示：「將GROUP BY dv.venue添加到您的SQL語句的末尾，並將語句的選擇部分更改爲'dv.venue，count（*）'？ – Slartibartfast

我試圖計算所有在第一列中記錄第一列中每個唯一值作爲我的最終結果集 –

SELECT venue, COUNT(*) FROM (YOUR_QUERY_HERE) t GROUP BY t.venue;

就是這樣。

來源

2011-09-18 21:17:38 NiematojakTomasz

非常感謝！完美地工作。 –

如何獲得在設置

回答

相關問題