Summary table with row/column totals using SQL pivot - sql

Question

I need help with SQL for generating pivot table with row/column totals calculated ..I have 2 tables as given below
Table ProbCat
==============
probcat | probdesc
1 minor
2 high
3 showstopper
Table ProbSummary
===================
prodcat | noofproblems | stage
1 5 Dev
2 1 Dev
3 6 QA
3 6 Prod
and I would like to generate a pivot table with row/column total percentages as shown below. I have tried combination of 'pivot' and 'group by' but could not get the row & column total accurately
Probelm Summary view:
ProbCategory CategoryDesc Dev Qa Prod Total(%)
______________________________________________________
1 Minor 5 0 0 5(100*(5/18))
2 High 1 0 0 1(100*(1/18))
3 Showstopper 0 6 6 12(100*(6/18))
Total NA 6(%) 6(%) 6(%)

Answer 1

Just like others mentioned, your summary/total calculation should be done on the presentation layer. But here is my attempt to getting your output minus the last summary line:
;WITH Q1
AS (
SELECT pvt.probcat
,pvt.probdesc
,ISNULL(pvt.[Dev], 0) AS 'Dev'
,ISNULL(pvt.[QA], 0) AS 'QA'
,ISNULL(pvt.[Prod], 0) AS 'Prod'
FROM (
SELECT pc.probcat
,pc.probdesc
,ps.noofproblems
,ps.stage
FROM Probcat pc
LEFT JOIN ProbSummary ps ON pc.probcat = ps.probcat
) t
PIVOT(max(noofproblems) FOR stage IN (
[Dev]
,[QA]
,[Prod]
)) pvt
),
q2 as
(SELECT q1.*
,sum(q1.Dev + q1.QA + q1.Prod) AS Total
FROM q1
GROUP BY q1.probcat
,q1.probdesc
,q1.Dev
,q1.QA
,q1.Prod
)
select q2.probcat
,q2.probdesc
,q2.Dev
,q2.QA
,q2.Prod
,cast(q2.Total as varchar(10)) + ' (' +
cast(cast((cast(q2.Total as decimal(5,2))/cast(d.CrossSum as decimal(5,2)))*100
as decimal(5,2)) as varchar(10))
+ '% )' as FinalTotal
from q2
CROSS APPLY (
SELECT sum(q1.Dev + q1.QA + q1.Prod) AS CrossSum
FROM q1
) d
ORDER BY q2.probcat
SQL Fiddle Demo

Answer 2

with x as
(select p.probcat as probcategory, p.probdesc as categotydesc,
case when s.stage = 'Dev' and s.noofproblems > 0 then s.noofproblems else 0 end as Dev,
case when s.stage = 'QA' and s.noofproblems > 0 then s.noofproblems else 0 end as QA,
case when s.stage = 'Prod' and s.noofproblems > 0 then s.noofproblems else 0 end as Prod
from Probcat p join Probsummary s on p.probcat = s.prodcat)
select probcategory,categotydesc,Dev,QA,Prod, Dev+QA+Prod as Total
from x
this should give what you need except the Total row at the bottom.

Answer 3

Here's a PIVOT query you can work with.. your example has prodcat in one table and probcat in the other.. not sure if that was typo in second table so i just with with probcat for both. should be easy to fix it it gives you an error
;
WITH ProbCatSummary AS
(
SELECT pc.probcat,
pc.probdesc,
SUM(ps.noofproblems) AS noofproblems
FROM ProbCat pc
JOIN ProbSummary ps ON pc.probcat = ps.probcat
GROUP BY pc.probcat,
pc.probdesc
)
SELECT p.*,
[Total (%)] = CONVERT(VARCHAR,[Dev] + [QA] + [Prod])
+ ' (' + CONVERT(VARCHAR,
CAST(ROUND((([Dev] + [QA] + [Prod]) * 100.0 / SUM(ps.noofproblems) OVER()),2) AS DECIMAL(8,2))
)
+ ')'
FROM (
SELECT probcat, probdesc, ISNULL([Dev],0)[Dev], ISNULL([QA],0)[QA], ISNULL([Prod],0)[Prod]
FROM (SELECT pc.probcat, probdesc, stage, noofproblems
FROM ProbCat pc
JOIN ProbSummary ps ON pc.probcat = ps.probcat) AS s
PIVOT (SUM(noofproblems) FOR stage IN ([Dev], [QA], [Prod])) AS p
) p JOIN ProbCatSummary ps ON p.probcat = ps.probcat