Average count data from pivot table - Need assistance - sql

Question

I am working on a little project to deliver application that pull data from database to show average of shipment made each day of the week. I have made some progress and have now script that count all of shipment but because I count them based on varchar type of column also I need solution to calculate average for each day of the week separately.
So far I end up with something as follows:
SELECT [Monday], [Tuesday], [Wednesday], [Thursday], [Friday], [Saturday], [Sunday]
FROM (
SELECT DATENAME(dw, Shipment.Date) AS DayWeek, Shipment.ID
FROM Shipment
WHERE MONTH(Shipment.Date)= MONTH(DATEADD(MONTH, DATEDIFF(MONTH, 0, 'OCTOBER 2016' ), 0)) AND
Shipment.Bur = 'GB'
) AS src
pivot (
COUNT(ID) FOR DayWeek IN ([Monday], [Tuesday], [Wednesday], [Thursday], [Friday], [Saturday], [Sunday])
) AS pvt
I appreciate much any hint or help as it is looks like I run out of ideas at the moment and can get any further to deliver right solution.

Answer 1

I would suggest dispensing with the pivot altogether and putting on the results in separate rows:
SELECT DayWeek, AVG(cnt)
FROM (SELECT s.Date, DATENAME(dw, s.Date) AS DayWeek, COUNT(*) as cnt
FROM Shipment s
WHERE MONTH(s.Date) = MONTH(DATEADD(MONTH, DATEDIFF(MONTH, 0, 'OCTOBER 2016' ), 0)) AND
s.Bur = 'GB'
GROUP BY s.Date
) d
GROUP BY DayWeek
ORDER BY MIN(s.Date);

Answer 2

I found the answer for my question by browsing through stackoverflow encountering on similar problem posted by one of the user.
SELECT [Day], SUM(q.Totals) AS "Weekly Shipment Amount", AVG(Totals) AS [Avg]
FROM
(
SELECT
w = DATEDIFF(WEEK, 0, DATE),
[Day] = DATENAME(Weekday, DATE),
Totals = COUNT(*)
FROM dbo.Shipment
--INNER JOIN FCLI (NOLOCK) ON FCLI.CCLI = FEXP.CCLI
WHERE (BUR = 'GB' AND
Shipment.Date >= '20160601' AND Shipment.Date <= '20160630')
GROUP BY
DATEDIFF(WEEK, 0, Date),
DATENAME(WEEKDAY, Date),
DATEPART(WEEKDAY, Date)
) AS q
GROUP BY [Day]
ORDER BY [DaY] ASC;