选择链接行数少于10的数据

Question

我在mySQL数据库中有两个表：

• 代理：ID, host, port, user, pw
• 帐户：proxyID, column

我想让所有代理商的ID出现在帐户表<=10次中。

SELECT count(ProxyId) from Account

不知道如何从这里继续并获得少于10的代理值。

Answer 1

尝试这样的事情：

SELECT p.*
FROM Proxy AS p JOIN Account AS a ON p.ID = a.proxyID
GROUP BY p.ID
HAVING COUNT(*) <= 10

Answer 2

select a.Id from proxy a, account b
where a.ID = b.proxyId
group by a.ID
having count(*) <= 10