2017-04-20 45 views

回答

0

的解决方案是这样的SQL查询

SELECT c.CustomerID, c.EmailAddress, SUM(g.GiftAmountLeft) AS 'Store Credit', SUM(rph.points) AS 'Reward Points' 
FROM Customers AS c JOIN GiftCards AS g ON c.CustomerID = g.CustomerID 
JOIN Reward_Points_History AS rph ON c.CustomerID = rph.customerid 
GROUP BY c.CustomerID, c.EmailAddress ORDER BY c.CustomerID 

这将导出客户ID,电子邮件,店铺信誉和奖励积分。

+0

你怎么知道模式?顺便说一句,我会做左连接 - 以防万一客户没有礼品卡或奖励积分。 – jarlh

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@jarlh该查询由Volusion客户支持团队设置。编辑查询显然取决于您的需求。 – Mike