SQL Server:按字段上的函数分组选择

Question

我有一个 group by YEAR(mydate),MONTH(mydate)

我想选择它们作为一个独特的领域

SELECT SUM(Price),YEAR(mydate) + '/' + MONTH(mydate)
FROM MyTable
GROUP BY YEAR(mydate), MONTH(mydate)

或类似的东西.

mydate是smalldatetime.

可能吗？

Answer 1

试试这个:

SELECT cast(YEAR(mydate) as CHAR(4))+'/'+cast(MONTH(mydate) as varchar(2))
FROM MyTable
Group by YEAR(mydate),MONTH(mydate)