sql - 如何在 SQL Server 的 where 子句中使用 sum 函数？

Question

我是 SQL Server 的新手。我想使用 sum 等于两列功能。请找到以下查询。

select top 1000 
    o.orderamount, sum(oi.amount), oi.orderid 
from 
    orders o 
inner join 
    orderitem oi on o.orderid = oi.orderid 
where 
    orderamount = sum(oi.amount)
group by  
    oi.orderid, orderamount
order by 
    oi.orderid desc

每当我执行此代码时，都会出现错误。

请帮我。

Answer 1

您可以使用 HAVING :

select  top 1000 o.orderamount, sum(oi.amount), oi.orderid 
from orders o 
inner join orderitem oi on o.orderid = oi.orderid 
group by oi.orderid ,orderamount
HAVING orderamount = sum(oi.amount)
order by oi.orderid desc