una - sumar por filas sql server

Suma condicional en grupo por consulta MSSQL

Question

Tengo una tabla OrderDetails con el siguiente esquema:

----------------------------------------------------------------
|  OrderId  |  CopyCost  |  FullPrice  |  Price  |  PriceType  |
----------------------------------------------------------------
|  16       |  50        |  100        |  50     |  CopyCost   |
----------------------------------------------------------------
|  16       |  50        |  100        |  100    |  FullPrice  |
----------------------------------------------------------------
|  16       |  50        |  100        |  50     |  CopyCost   |
----------------------------------------------------------------
|  16       |  50        |  100        |  50     |  CopyCost   |
----------------------------------------------------------------

Necesito una consulta que suponga la tabla anterior en una nueva tabla con el siguiente esquema:

----------------------------------------------------------------
|  OrderId  |  ItemCount  |  TotalCopyCost  |  TotalFullPrice  |
----------------------------------------------------------------
|  16       |  4          |  150            |  100             |
----------------------------------------------------------------

Actualmente estoy usando un grupo por en el pedido. Id al recuento del artículo. Pero no sé cómo suponer condicionalmente los valores CopyCost y FullPrice.

Cualquier ayuda sería muy apreciada.

Saludos Freddie

Answer 1

Podrías usar:

SELECT
  OrderId,
  Count(1) as ItemCount,
  SUM(CASE WHEN PriceType = ''CopyCost'' 
        THEN CopyCost ELSE 0 END) AS TotalCopyCost,
  SUM(CASE WHEN PriceType = ''FullPrice'' 
        THEN FullPrice ELSE 0 END) AS TotalFullPrice
FROM OrderDetails
GROUP BY OrderId

Answer 2

Prueba esta consulta

select 
   orderId, 
   count(*) as cnt, 
   sum(if(pricetype=''CopyCost'', CopyCost, 0)) as totalCopyCost,
   sum(if(pricetype=''FullPrice'', FullPrice, 0)) as totalFullPrice
from 
   tbl
group by 
   orderId

FIDDLE SQL :

| ORDERID | CNT | TOTALCOPYCOST | TOTALFULLPRICE |
--------------------------------------------------
|      16 |   4 |           150 |            100 |

Answer 3

También podrías intentar ...

select A.OrderID, A.ItemCount,B.TotalCopyCost, C.TotalFullPrice
from (select OrderID, count(*) as ItemCount from orderdetails) as A,
(select OrderID, sum(CopyCost) as TotalCopyCost from orderdetails where PriceType = ''CopyCost'') as B,
(select OrderID, sum(FullPrice) as TotalFullPrice from orderdetails where PriceType = ''FullPrice'') as C
where A.OrderID = B.OrderID

SQLFiddle: http://sqlfiddle.com/#!2/946af/6

Answer 4

Tratar

SELECT OrderId, 
       COUNT(*) ItemCount,
       SUM(CASE WHEN PriceType = ''CopyCost'' THEN Price ELSE 0 END) TotalCopyCost,
       SUM(CASE WHEN PriceType = ''FullPrice'' THEN Price ELSE 0 END) TotalFullPrice
  FROM OrderDetails
 GROUP BY OrderId

SQLFiddle