PHP代碼列表與合計值的所有用戶從其他表收集

表阿PHP代碼列表與合計值的所有用戶從其他表收集

----------------- 
a_id | user _a | 
----------------- 
1  |adam | 
2  |jose  | 
3  |adam | 
4  |adam | 
5  |anne | 
6  |jose  |

表乙

-------------------------------------- 
b_id | user_b | value1 | value2 
-------------------------------------- 
1  |adam | 33   | 9 
2  |jose  | 46   |88 
3  |adam | 77   |21 
4  |adam | 81   |15 
5  |anne | 11   |67 
6  |jose  | 45   |6

表C中

-------------------------------------- 
c_id | user_c | value1 | value2 
-------------------------------------- 
1  |adam | 33   | 9 
2  |jose  | 46   |88 
3  |adam | 77   |21 
4  |adam | 81   |15

表d

-------------------------------------- 
d_id | user_d | value1 | value2 
-------------------------------------- 
1  |adam | 33   | 9 
2  |jose  | 46   |88

如何查看value1和value2的總值。例如：我希望我的列表視圖頁面看起來像這樣。

-------------------------------------------------------- 
user | total value of value1 | total value of value2 
--------------------------------------------------------- 
adam |415     | 99 
jose |183      | 270 
anne |11      | 67

請提供。幫幫我。

來源

2014-08-28 blinddevil

SO不是自由編碼服務。請顯示您嘗試過的內容，我們會幫助您解決問題。 – Barmar 2014-08-28 03:38:52

提示：使用'UNION ALL'將三個表與值相結合，並使用SUM（）和GROUP BY來計算總數。 – Barmar 2014-08-28 03:40:57

我之前問過，這裏： http://stackoverflow.com/questions/12649119/select-total-of-childrens-in-multiple-tables-in-one-query-with-mysql – manix 2014-08-28 03:43:08

這裏的一個方法中，以獲得使用SQL查詢（獨立於任何處理的PHP）指定的結果：

SELECT t.user_t  AS `user` 
    , SUM(t.value1) AS `total value of value1` 
    , SUM(t.value2) AS `total value of value2` 
    FROM (SELECT b.user_b  AS user_t 
       , SUM(b.value1) AS value1 
       , SUM(b.value2) AS value2 
      FROM table_b b 
      GROUP BY b.user_b 
      UNION ALL 
     SELECT c.user_c  AS user_t 
       , SUM(c.value1) AS value1 
       , SUM(c.value2) AS value2 
      FROM table_c c 
      GROUP BY c.user_c 
      UNION ALL 
     SELECT d.user_d  AS user_t 
       , SUM(d.value1) AS value1 
       , SUM(d.value2) AS value2 
      FROM table_d d 
      GROUP BY d.user_d 
     ) t 
GROUP BY t.user_t 
ORDER BY 2 DESC

來源

2014-08-28 04:04:46 spencer7593

PHP代碼列表與合計值的所有用戶從其他表收集

回答

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