SQL Pivot to be used in a View - sql-server

Question

I am trying to create a view that will sum the total hours of different work types, as well as the quantity of different products used to a RefNumber.
I have successfully pivoted and summed the hours of work grouped by RefNumber, but now I am scratching my head on how to sum the total product use by Ref Number.
Sample Data
Download Excel of data
Keep in mind, on some RefNumbers, there will be multiple entries of the same ProductID. We may have had a few guys using the same product in different quantities.
Here is what I am trying to the Pivot the data too:
Pivot Data
So far, I have been able to accomplish summing the hours of each work type, and pivoting that data into a single line item grouped by the Ref Number using the following SQL code:
SELECT RefNumber,
SUM (CASE WHEN WorkType = 'Blast' THEN THours ELSE NULL END) AS TBlast,
SUM (CASE WHEN WorkType = 'Wheel' THEN THours ELSE NULL End) As TWheel,
SUM (CASE WHEN WorkType = 'Painting' THEN THours ELSE NULL END) AS TPainter,
SUM (CASE WHEN WorkType = 'Mask/Prep' THEN Thours ELSE NULL END) As TMask,
SUM (CASE WHEN WorkType = 'Demask/Touch Up' THEN Thours ELSE NULL END) As TDMask,
SUM (CASE WHEN WorkType = 'Handling: Raw' THEN THours ELSE NULL END) As TRHand,
SUM (CASE WHEN WorkType = 'Handling: Product' THEN Thours ELSE NULL END) As TPHand,
SUM (CASE WHEN WorkType = 'Wheel:Assist' THEN Thours ELSE NULL END) As TAWheel,
SUM (CASE WHEN WorkType = 'Metalizing' THEN Thours ELSE NULL END) As TMetal
FROM (
SELECT [RefNumber], [WorkType], SUM (Hours)/60 As THours
FROM [dbo].[Vw_Beta_CostLog]
GROUP BY RefNumber, WorkType
) sub
GROUP BY RefNumber
ORDER BY RefNumber
Any Ideas on how to modify this code base to Pivot the the distinct product ID's into there own column, and sum the use of those products in a second column?
Also, I want to be able to use this as a view, so I am trying to avoid dynamic pivots.
EDIT: Forgot to mention, there will be at most 4 unique products used per ref number.
RAW DATA
GUID EmpName RefNumber DateInt Hours WorkType ProductID PQty
P-3468 Gary Hahn 114204 20181008 132 Painting NULL NULL
P-3473 Gary Hahn 114204 20181009 204 Painting NULL NULL
P-3475 Gary Hahn 114204 20181009 120 Painting NULL NULL
F-31915 Jose Flores 114204 20181007 60 Handling: Raw NULL NULL
F-31941 Jose Flores 114204 20181008 30 Handling: Raw NULL NULL
F-31951 Chris Pollock 114204 20181008 30 Handling: Raw NULL NULL
F-32076 Chris Pollock 114204 20181010 120 Handling: Product NULL NULL
F-32109 Chris Pollock 114204 20181011 90 Handling: Product NULL NULL
F-32301 Daryl Underwood 114204 20181015 15 Handling: Product NULL NULL
B-6594 David Martinez 114204 20181007 150 Blast NULL NULL
B-6599 Emiliano Barrios 114204 20181008 66 Blast NULL NULL
B-6617 Jose Molina 114204 20181009 30 Blast NULL NULL
P-3468 Gary Hahn 114204 20181008 NULL Primer 11 3
P-3473 Gary Hahn 114204 20181009 NULL Intermediate 890 2
P-3475 Gary Hahn 114204 20181009 NULL Finish 134HG 2
Output I am looking for
RefNumber Blast Painting Handling: Raw Handling: Product Product1 P1Qty Product2 P2Qty Product3 P3Qty
114204 246 456 120 225 11 3 890 2 134HG 2

Answer 1

You can "pivot" non-numeric data by using MAX() instead of SUM() and continue to use case expressions as you are already doing.
SELECT
RefNumber
, SUM (CASE WHEN WorkType = 'Blast' THEN Hours/60 ELSE NULL END) AS TBlast
, SUM (CASE WHEN WorkType = 'Wheel' THEN Hours/60 ELSE NULL End) As TWheel
, SUM (CASE WHEN WorkType = 'Painting' THEN Hours/60 ELSE NULL END) AS TPainter
, SUM (CASE WHEN WorkType = 'Mask/Prep' THEN Hours/60 ELSE NULL END) As TMask
, SUM (CASE WHEN WorkType = 'Demask/Touch Up' THEN Hours/60 ELSE NULL END) As TDMask
, SUM (CASE WHEN WorkType = 'Handling: Raw' THEN Hours/60 ELSE NULL END) As TRHand
, SUM (CASE WHEN WorkType = 'Handling: Product' THEN Hours/60 ELSE NULL END) As TPHand
, SUM (CASE WHEN WorkType = 'Wheel:Assist' THEN Hours/60 ELSE NULL END) As TAWheel
, SUM (CASE WHEN WorkType = 'Metalizing' THEN Hours/60 ELSE NULL END) As TMetal
, MAX (CASE WHEN rn = 1 THEN WorkType END) As WorkType1
, MAX (CASE WHEN rn = 1 THEN ProductID END) As Product1
, MAX (CASE WHEN rn = 1 THEN PQty END) As Qty1
, MAX (CASE WHEN rn = 2 THEN WorkType END) As WorkType2
, MAX (CASE WHEN rn = 2 THEN ProductID END) As Product2
, MAX (CASE WHEN rn = 2 THEN PQty END) As Qty2
, MAX (CASE WHEN rn = 3 THEN WorkType END) As WorkType3
, MAX (CASE WHEN rn = 3 THEN ProductID END) As Product3
, MAX (CASE WHEN rn = 3 THEN PQty END) As Qty3
FROM (
SELECT
[RefNumber]
, [WorkType]
, [ProductID]
, Hours
, PQty
, ROW_NUMBER() OVER (PARTITION BY RefNumber, case when ProductID IS NULL then 0 else 1 end ORDER BY ProductID) rn
FROM [Vw_Beta_CostLog]
) sub
GROUP BY
RefNumber
ORDER BY
RefNumber
Note that you cannot create a view which dynamically increases or decreases the number of columns based on how many products are used.
see online demo: https://rextester.com/SBQUP24417