过滤计数会导致sql查询

Question

如何过滤下面查询中的计数列，只显示计数＆gt;的行数1？

select FirstName, COUNT(*) as [CountTickets] from tblParkingTickets
group by FirstName  
order by [CountTickets] desc

这不起作用：

select FirstName, COUNT(*) as [CountTickets] from tblParkingTickets
where [CountTickets] > 1
group by FirstName  
order by [CountTickets] desc

由于

Answer 1

HAVING：

HAVING COUNT(*) > 1

分组前的

WHERE过滤器（因此COUNT并不意味着什么）。分组后HAVING过滤。

Answer 2

select * from (select FirstName, COUNT(*) mycount from tblParkingTickets
group by FirstName  
order by 2 desc) where mycount > 1

试试这个