Can I use pivot to add columns in the sum? - sql

Question

I have a query where i get the ave of a rating for different question q1-q5.
Would it possible to add the q1-q5 and divide it by the count using pivot?
I have try to make a query below:
SELECT
employeedept,YEAR_cse,csedept_name,
SUM(January) as January, SUM(February) as February,
SUM(March) as March, SUM(April) as April,
SUM(May) as May, SUM(June) as June,
SUM(July) as July, SUM(August) as August,
SUM(September) as September, SUM(October) as October,
SUM(November) as November, SUM(December) as December
FROM
(SELECT
CAST(employeedept AS INT) as dept,
ROUND(AVG(case when rating1 > 0 THEN CAST(rating1 AS FLOAT) ELSE null END), 2) as q1,
ROUND(AVG(case when rating2 > 0 THEN CAST(rating2 AS FLOAT) ELSE null END), 2) as q2,
ROUND(AVG(case when rating3 > 0 THEN CAST(rating3 AS FLOAT) ELSE null END), 2) as q3,
ROUND(AVG(case when rating4 > 0 THEN CAST(rating4 AS FLOAT) ELSE null END), 2) as q4,
ROUND(AVG(case when rating5 > 0 THEN CAST(rating5 AS FLOAT) ELSE null END), 2) as q5,
count(*) as 'totalstars',
month_cse = datename(month, approveddate),
YEAR_cse = YEAR(approveddate)
FROM
CSEReduxResponses
WHERE
execoffice_status = 1
and YEAR ([approveddate]) =2014
GROUP BY
month(approveddate), YEAR(approveddate),
DATENAME(month,approveddate), employeedept) AS r
JOIN
CSEReduxDepts d ON d.csedept_id = r.employeedept
AND YEAR_cse is NOT NULL
PIVOT( SUM(q1+q2+q3+q4+q5/totalstars)
FOR [month_cse] IN (
[January],[February],[March],[April],[May],[June],[July],[August], [September],[October],[November],[December]
)) AS pvt
Group BY employeedept,YEAR_cse,csedept_name
With this query I get this error:
Msg 102, Level 15, State 1, Line 21
Incorrect syntax near '+'.'
What I would like to do is be able to sum the q1-q5/totalstars, Would something like this be possible using pivot?
If I run the second select statement it gives me the correct results.

Answer 1

I think this should be your final query that you need.
I have done wrote the count function to do the average if your value is null then it will return 0 for the particular column
Lets say
rating1 = null then ISNULL(COUNT(rating1),0) = 0
rating2 = 2 then ISNULL(COUNT(rating1),0) = 1
rating3 = 3 then ISNULL(COUNT(rating1),0) = 1
so on....
Here's the query. I hope this will help you.
SELECT
employeedept,
YEAR_cse,
csedept_name,
SUM(January) as January,
SUM(February) as February,
SUM(March) as March,
SUM(April) as April,
SUM(May) as May,
SUM(June) as June,
SUM(July) as July,
SUM(August) as August,
SUM(September) as September,
SUM(October) as October,
SUM(November) as November,
SUM(December) as December
FROM
(
SELECT employeedept,
(
ROUND(AVG(case when rating1>0 THEN CAST(rating1 AS FLOAT) ELSE 0 END), 2) +
ROUND(AVG(case when rating2>0 THEN CAST(rating2 AS FLOAT) ELSE 0 END), 2) +
ROUND(AVG(case when rating3>0 THEN CAST(rating3 AS FLOAT) ELSE 0 END), 2) +
ROUND(AVG(case when rating4>0 THEN CAST(rating4 AS FLOAT) ELSE 0 END), 2) +
ROUND(AVG(case when rating5>0 THEN CAST(rating5 AS FLOAT) ELSE 0 END), 2))
/(
ISNULL(COUNT(rating1),0) +
ISNULL(COUNT(rating2),0) +
ISNULL(COUNT(rating3),0) +
ISNULL(COUNT(rating4),0)+
ISNULL(COUNT(rating5),0)) as AG,
count(*) as 'totalstars',month_cse= datename(month,approveddate),YEAR_cse =YEAR(approveddate)
FROM
CSEReduxResponses
Where
YEAR(approveddate) =2014
and execoffice_status=1
group by
employeedept,
month(approveddate),
YEAR(approveddate),
DATENAME(month,approveddate)
)AS r
JOIN CSEReduxDepts d ON d.csedept_id = r.employeedept
AND YEAR_cse is NOT NULL
PIVOT(
SUM(AG)
FOR [month_cse] IN (
[January],[February],[March],[April],[May],[June],[July],[August], [September],[October],[November],[December]
)) AS pvt
Group BY employeedept,YEAR_cse,csedept_name