必须找到总总销售额作出并获得总折扣,在2002年及2002年销售集中......枢轴还是转置?
表1还当月:的SalesOrderDetail
- UnitPrice
- UnitPriceDiscount
- OrderQty
表2:SalesOrderHeader的
- OrderDate
附上的是这两个表的模式的捕捉
https://i.stack.imgur.com/f2b5A.png
我能设法得到的结果seperately但不理解如何 结合/聚集他们....是否使用转或转动......
#Yearly
select DATE_FORMAT(a.OrderDate,'%Y') AS Yearly,sum(b.UnitPriceDiscount) as DiscTotal,
SUM((`UnitPrice` * OrderQty)-UnitPriceDiscount) AS total
FROM SalesOrderHeader a join SalesOrderDetail b
on b.SalesOrderID = a.SalesOrderID
WHERE YEAR(OrderDate) = 2002
group by Yearly
order by MONTH(OrderDate)
#CurMonthOfYear
select DATE_FORMAT(a.OrderDate,'%M') AS CurrentMonth,sum(b.UnitPriceDiscount) as DiscountAmt,
SUM((`UnitPrice` * OrderQty)-UnitPriceDiscount) AS total
FROM SalesOrderHeader a join SalesOrderDetail b
on b.SalesOrderID = a.SalesOrderID
WHERE month(OrderDate) = MONTH(NOW())
**的结果应该是以下格式**
Metrics Yearly CurMonthOfYear
DiscountAmt 540.82 28.48
TotalSales 303.17 237.2
@ Pierre.Vriens它没有透视或转置,但查询有助于获得所需格式的输出。 –