获取COUNT（）结果SQL的SUM（）

Question

我有一个查询找到有2个或更多地址的BusinessEntityID - 这样可以正常工作，结果我得到36行，表明有36个商家有两个或更多地址。

SELECT count(BusinessEntityID) FROM Person.BusinessEntityAddress
GROUP BY BusinessEntityID
HAVING COUNT(BusinessEntityID) >= 2

如何修改此查询以便对结果求和？我需要我的最终结果是计算我得到多少结果（36）而不是行本身。

谢谢

Answer 1

如果您只想要最终计数，那么：

SELECT COUNT(count) from
(SELECT count(BusinessEntityID) AS count FROM Person.BusinessEntityAddress
GROUP BY BusinessEntityID
HAVING COUNT(BusinessEntityID) >= 2) AS t