后,我已经制定了一个问题,我有以下几点:mysql命令通过SUM
SELECT Event_id, SUM(Money) AS 'Total Money'
FROM prize
GROUP BY Event_id
ORDER BY 'Total Money' DESC;
但是它不总汇票。如果我省略了''标记并呼叫Total_Money列,它工作正常:
SELECT Event_id, SUM(Money) AS Total_Money
FROM prize
GROUP BY Event_id
ORDER BY Total_Money DESC
这是为什么? 有没有办法调用栏目总金额和排序我想要的?
您使用报价',不要使用报价。使用'字符 – 2012-07-24 10:13:27