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SQL - Need to change this SP to sum all previous years

Posted on 2016-09-09
Medium Priority
69 Views
I need help getting this to work.  I need to get a sum value for all previous years without double counting any cylinder gas weight.

Example:

Cyl1 has a weighing event in each of the previous 5 years and this year.
The only weighing event that should be counted towards the total sum is the most recent weighing event LAST year.

Cyl2 had a weighing event 5 years ago and 4 years ago.
The only weighing event that should be counted towards the total sum is the one 4 years ago with the max Date for that year.

Note: All cylinders may be weighed more than once a year so it has to be the Max Date for the year used.

I also need a variant of this SP that includes the most recent weighing event including current year.

``````IF EXISTS (SELECT * FROM SYSOBJECTS WHERE ID = OBJECT_ID(N'[dbo].[usp_SF6_GetCylinderBOY]') AND OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE [dbo].[usp_SF6_GetCylinderBOY]
GO
CREATE PROCEDURE [dbo].[usp_SF6_GetCylinderBOY]
@CompanyID int,
@YearPartDate datetime
AS
BEGIN

SELECT SUM(GasWeight)
FROM (
select we.ContainerID, we.GasWeight,
row_number() over (partition by we.ContainerID order by we.DateStamp desc) rn
FROM [WeighingEvents] we
JOIN [Container] c ON we.[ContainerID] = c.[ContainerID]
WHERE c.ContainerTypeID = 1 AND we.[CompanyID] = @CompanyID AND we.[Active] = 1 AND (YEAR(we.[DateStamp]) = YEAR(@YearPartDate))
) sq
WHERE rn = 1

END
GO
``````
0
Question by:CAMPzxzxDeathzxzx
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LVL 35

Accepted Solution

ste5an earned 2000 total points
ID: 41792316
Sounds like you're looking for:

``````ALTER PROCEDURE dbo.usp_SF6_GetCylinderBOY
@CompanyID INT ,
@YearPartDate DATETIME
AS
SET NOCOUNT ON;

WITH    Filtered
AS ( SELECT   WE.ContainerID ,
WE.GasWeight ,
ROW_NUMBER() OVER ( PARTITION BY WE.ContainerID ORDER BY WE.DateStamp DESC ) AS RN
FROM     WeighingEvents WE
INNER JOIN Container C ON WE.ContainerID = C.ContainerID
WHERE    C.ContainerTypeID = 1
AND WE.CompanyID = @CompanyID
AND WE.Active = 1
AND WE.DateStamp < DATEADD(YEAR, DATEDIFF(YEAR, 0, @YearPartDate), 0)
)
SELECT  SUM(F.GasWeight)
FROM    Filtered F
WHERE   F.RN = 1
GO
``````
0

Author Closing Comment

ID: 41792689
You rock dude
0

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