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正确

练习:

按客户数量列出每个国家的客户数量,首先按客户最多的国家排序。

SELECT COUNT(CustomerID), Country FROM Customers GROUP BY Country ORDER BY
COUNT(CustomerID) DESC;

不正确

点击 此处 重试

正确

下一题 ❯
SELECT (CustomerID),
Country
FROM Customers

ORDER BY 
;







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