MySQL查询带有计数并删除结果

Question

我列出了美国所有邮政编码。我需要删除不出现在多个县的邮政编码。

我创建了以下查询，它能够提取我不需要的所有邮政编码，但现在我需要删除它们。

SELECT zipcode, COUNT(countyname) FROM enrollmy_healthr.`table 10`
group by zipcode having count(zipcode)>1;

提前感谢您提供任何帮助。

此致

Answer 1

这种方式可以帮到你

Delete from enrollmy_healthr.`table 10` where zipcode in 
(select * from (SELECT e.zipcode FROM enrollmy_healthr.`table 10` e 
group by e.zipcode having count(e.zipcode)>1) tmp )