MySQL - 如何在同一查詢中使用ROLLUP和ORDER BY

Question

SELECT donator, event, SUM(amount) AS total_donation_per_donator 
FROM tr_donation WHERE ngopkid=1 
GROUP BY donator, event WITH ROLLUP 

使用上述查詢我得到的結果如下。

Johnny Cruz 
    Charity: Event 001 | Amount: US$ 100  
    Charity: Event 002 | Amount: US$ 30  
    Charity: Event 003 | Amount: US$ 90    
         Total : US$ 220 

Mike Polo 
    Charity: Event 002 | Amount: US$ 200  
    Charity: Event 004 | Amount: US$ 125  
         Total : US$ 325 

現在我想通過數據總子每個捐贈者的分類（例如：US $ 325 US $ 220），所以用最高捐款捐贈者會首先顯示。

下面的查詢是按升序對記錄進行排序，但如果我使用'total_donation_per_donator'的DESC，它將按降序錯誤排序所有數據，結果是錯誤的。

SELECT * FROM (
    SELECT *, SUM(amount) AS total_donation_per_donator 
    FROM tr_donation 
    WHERE ngopkid=1 
    GROUP BY donator, event 
    WITH ROLLUP 
) 
temp_tr_donation ORDER BY total_donation_per_donator 

這裏是表結構。

CREATE TABLE IF NOT EXISTS `tr_donation` (
    `pkid` bigint(20) unsigned NOT NULL AUTO_INCREMENT, 
    `ngopkid` bigint(20) unsigned NOT NULL DEFAULT '0', 
    `donator` varchar(100) NOT NULL DEFAULT '', 
    `eventpkid` bigint(20) unsigned NOT NULL DEFAULT '0', 
    `event` varchar(100) NOT NULL DEFAULT '', 
    `amount` float unsigned NOT NULL DEFAULT '0', 
    `postdate` datetime DEFAULT '0000-00-00 00:00:00', 
    PRIMARY KEY (`pkid`) 
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; 

Answer 1

SELECT 
    donation.`donator`, 
    donation.`event`, 
    SUM(donation.`amount`) AS total_donation_per_donator_and_event, 
    sumdonation.total_donation_per_donator 
FROM tr_donation AS donation 
INNER JOIN (
    SELECT 
     `donator`, 
     SUM(`amount`) AS total_donation_per_donator 
    FROM tr_donation 
    GROUP BY `donator` 
) AS sumdonation ON sumdonation.`donator` = donation.`donator` 
GROUP BY 
    donation.`donator`, 
    donation.`event` 
ORDER BY 
    sumdonation.total_donation_per_donator DESC, 
    donation.`event` ASC 

你應該在生產環境中使用它之前測試這個查詢與填表格。性能可能很差..