当我在 ACCESS 2007 中运行以下 SQL 时
Select Location, COUNT(ApartmentBuildings) AS TotalIBuildingsManaged From Apartments Where COUNT(ApartmentBuildings) > 3 Group By Location Order By COUNT(ApartmentBuildings) DESC;
我收到以下错误:
where 子句中不能有聚合函数。我应该如何形成此查询以获取所有公寓楼数大于 3 的位置？
最佳答案
使用 having而不是 where :
Select Location, COUNT(ApartmentBuildings) AS TotalIBuildingsManaged
From Apartments
Group By Location
Having COUNT(ApartmentBuildings) > 3
Order By COUNT(ApartmentBuildings) DESC;
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关于聚合函数上的 SQL 比较，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6204597/