Sql server 如何将两列相乘并将其结果存储在单个列中,然后生成新列的和?
我有两栏价格和数量。我使它们成倍增加Sql server 如何将两列相乘并将其结果存储在单个列中,然后生成新列的和?,sql-server,sql-server-2008,tsql,Sql Server,Sql Server 2008,Tsql,我有两栏价格和数量。我使它们成倍增加 select Price*Quantity as SubTotal from ProductInfo 现在我想把小计中所有行的总和作为grandtotal SUM(SubTotal) as GrandTotal 及 因此,需要一个新的查询 select Price*Quantity as SubTotal , SUM(SubTotal) as GrandTotal from ProductInfo 我该怎么做请帮助试试这个: Select Pric
select Price*Quantity as SubTotal from ProductInfo
现在我想把小计中所有行的总和作为grandtotal
SUM(SubTotal) as GrandTotal
及
因此,需要一个新的查询
select Price*Quantity as SubTotal , SUM(SubTotal) as GrandTotal from ProductInfo
我该怎么做请帮助试试这个:
Select Price*Quantity as SubTotal,
SUM(Price*Quantity) as GrandTotal
from ProductInfo
这将按预期结果进行。它是否将小计MSG 8120,级别16,状态1,第1行的所有行相加?列“ProductInfo.Price”在选择列表中无效,因为它不包含在聚合函数或GROUP BY子句中。
Select ISNULL(Price*Quantity, 'GrandTotal') as SubTotal,
SUM(Price*Quantity) as Total
from ProductInfo
GROUP BY ISNULL(Price*Quantity, 'GrandTotal')
WITH ROLLUP