總結來自MySQL查詢的輸出

Question

我想總結一個查詢的輸出，但我正在掙扎。下面的查詢檢查fax_authorized表，並根據他們的電子郵件地址生成擴展摘要。

我有以下查詢：

SELECT extended_number, IF(COUNT(extension_id)<5,1,0) AS 'fax5', 
    IF(COUNT(extension_id)>5 AND COUNT(extension_id)<11,1,0) AS 'fax10', 
    IF(COUNT(extension_id)>10,1,0) AS 'fax10+', COUNT(extension_id) AS 'fax_total' 
FROM fax_authorized fa, extension e 
WHERE fa.extension_id = e.id 
GROUP BY extended_number; 

輸出看起來是這樣的：

+-----------------+------+-------+--------+-----------+ 
| extended_number | fax5 | fax10 | fax10+ | fax_total | 
+-----------------+------+-------+--------+-----------+ 
| 0009*004  | 1 |  0 |  0 |   1 | 
| 0139*601  | 0 |  1 |  0 |   6 | 
| 0139*743  | 1 |  0 |  0 |   2 | 
| 0139*996  | 1 |  0 |  0 |   1 | 
+-----------------+------+-------+--------+-----------+ 

我想什麼是總結基礎上離開了這個數據（extended_number，4），以便爲上面的示例0139將具有fax5 = 2，fax10 = 1，fax_total = 9。

我曾經嘗試這樣做，不工作：

SELECT extended_number, SUM(IF(COUNT(extension_id)<5,1,0)) AS 'fax5', 
    SUM(IF(COUNT(extension_id)>5 AND COUNT(extension_id)<11,1,0)) AS 'fax10', 
    SUM(IF(COUNT(extension_id)>10,1,0)) AS 'fax10+', 
    COUNT(LEFT(extension_id,4)) AS 'fax_total' 
FROM fax_authorized fa, extension e 
WHERE fa.extension_id = e.id 
GROUP BY LEFT(extended_number,4); 

編輯：我用Saharsh沙阿回答下面來解決這個問題，可是撞到了另外一個，我認爲是值得加入。我試圖從他的嵌套子查詢解決方案創建一個視圖，但無法執行，因爲視圖中不允許使用子查詢。所以，我創建了兩個相關的觀點如下：

CREATE VIEW vw_xoom_faxdetail AS 
    SELECT LEFT(extended_number,4) client_id, 
    IF(COUNT(extension_id)<5,1,0) AS 'fax5', 
    IF(COUNT(extension_id)>5 AND COUNT(extension_id)<11,1,0) AS 'fax10', 
    IF(COUNT(extension_id)>10,1,0) AS 'fax10plus', 
    COUNT(extension_id) AS 'fax_total' 
FROM fax_authorized fa, extension e WHERE fa.extension_id = e.id 
GROUP BY client_id; 

CREATE VIEW vw_xoom_fax AS 
SELECT client_id, SUM(fax5) fax5, SUM(fax10) fax10, 
    SUM(fax10plus) 'fax10+', SUM(fax_total) fax_total 
FROM vw_xoom_faxdetail 
GROUP BY client_id; 

Answer 1

試試這個：

SELECT extended_number, SUM(fax5) fax5, SUM(fax10) fax10, SUM(fax10plus) 'fax10+', SUM(fax_total) fax_total 
FROM (SELECT LEFT(extended_number,4) extended_number, IF(COUNT(extension_id)<5,1,0) AS 'fax5', 
      IF(COUNT(extension_id)>5 AND COUNT(extension_id)<11,1,0) AS 'fax10', 
     IF(COUNT(extension_id)>10,1,0) AS 'fax10plus', COUNT(extension_id) AS 'fax_total' 
     FROM fax_authorized fa, extension e WHERE fa.extension_id = e.id 
     GROUP BY extended_number) AS A 
GROUP BY extended_number;