Need to Dynamically Pivot Table Making Date Column New Table Headers - sql-server

Question

I've seen just about every kind of pivot example on the Internet, both text based tutorial and video. Not one is solving the issue at hand.
What I want is to pivot the following table:
Sales Table
SalesId | SalesDate | SalesLocation | SalesAmount
-----------------------------------------------------
1 | 2012-03 | New York, NY | 3,000
2 | 2012-04 | Miami, FL | 2,500
3 | 2012-05 | Carmel, CA | 2,850
4 | 2012-06 | Berkeley, CA | 1,900
5 | 2012-07 | Akron, OH | 4,200
6 | 2012-08 | Portland, OR | 2,200
I would like to PIVOT this table to show each row as a column, not distinct SUM of columns. Each row is specifically it's own column, with the date as the header, as if the table has been turned 90 degrees clockwise like an Excel spreadsheet, for date forecasting:
Account Info | 2012-03 | 2012-04 | 2012-05 | 2012-06
---------------------------------------------------------------------
SalesId | 1 | 2 | 3 | 4
SalesLocation | New York, NY | Miami, FL | Carmel, CA | Berkeley, CA
SalesAmount | 3,000 | 2,500 | 2,850 | 1,900
Most of the tutorials on this subject involve creating sums of several rows that have either the same city, the same status or the same type.
For this situation, each row already has a distinct unique date that will never be duplicated, so all records are unique and therefore do not require a function like SUM.
So far, after viewing an incredibly clear solution by JoyceW on the PIVOT Using Date Column thread at the ASP.net forums, I have gotten this far:
declare #cols varchar(max)
select #cols = (select distinct SalesDate from SalesTable for xml path(''))
select #cols = replace(#cols, '', '[')
select #cols = replace(#cols, '', '],')
select #cols = left(#cols, len(#cols) - 1)
declare #query varchar(max)
select #query = 'select * from (select SalesId, SalesLocation, SalesAmount
from SalesTable) src pivot (max(SalesAmount) for SalesDate in ('
+ #cols + ')) piv;'
execute(#query)
While this is not what I was looking for, it's the only tutorial that has allowed me to actually return a result set where the top columns are actually the dates (yay), as seen below:
SalesId | SalesLocation | SalesAmount | 2012-03 | 2012-04 | 2012-05
1 | New York, NY | 3,000 | {null} | {null} | 4
2 | Miami, FL | 2,500 | {null} | 3 | {null}
3 | Carmel, CA | 2,850 | {null} | {null} | {null}
4 | Berkeley, CA | 1,900 | 1 | {null} | {null}
5 | Akron, OH | 4,200 | {null} | {null} | {null}
6 | Portland, OR | 2,200 | {null} | 2 | {null}
Not really sure what's going on here, but it's a lot closer than I was before, I'm actually receiving a result set. Any ideas about how to fine tune this where the rows showing up need to be rotated or pivoted as well?
It seems that I'm only pivoting the headers and not the entire table as I would like. Any suggestions would be greatly appreciated.

Answer 1

As you want multiple aggregation columns in your pivot you have to do the iterations for each aggregation value. I am using Sales as the table name. Please change the table name if it is different for you. Below query should give you the result you want.
DECLARE #cols AS NVARCHAR(MAX),
#Convertcols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX),
#SQL AS NVARCHAR(MAX),
#PivotColumn Varchar(100),
#i Int = 1,
#AggColumn Varchar(100)
DECLARE #Columns TABLE (ID int IDENTITY(1,1), AccountInfo Varchar(max))
SELECT #cols = STUFF((SELECT ', '+ QUOTENAME(SalesDate)
from Sales
group by SalesDate
order by SalesDate
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
SELECT #Convertcols = STUFF((SELECT ', CAST( '+ QUOTENAME(SalesDate) + ' AS VARCHAR(max)) AS ' + QUOTENAME(SalesDate)
from Sales
group by SalesDate
order by SalesDate
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
INSERT INTO #Columns
SELECT C.name
FROM SYS.COLUMNS C
INNER JOIN SYS.TABLES T ON C.OBJECT_ID = T.OBJECT_ID
WHERE T.NAME = 'Sales'
AND C.name <> 'SalesDate'
While #i <= (SELECT MAX(ID) FROM #Columns)
BEGIN
SELECT #AggColumn = AccountInfo FROM #Columns Where ID = #i
set #query = 'SELECT AccountInfo,' + #Convertcols +
' FROM
(
SELECT ''' + #AggColumn + ''' AS AccountInfo, SalesDate, '+ #AggColumn +'
FROM Sales
) X
PIVOT
(
Max('+ #AggColumn +')
FOR SalesDate in (' + #cols + ')
) P '
SET #SQL = CONCAT(#SQL, CHAR(10), CASE WHEN #i = 1 THEN '' ELSE 'UNION ' END, CHAR(10) , #query)
SET #i = #i+1
END
EXECUTE (#SQL)
Result:

Answer 2

In order for you to be able to PIVOT, you'll need to have at least one non-pivoted column - something which your model is lacking.
Documentation: https://technet.microsoft.com/en-us/library/ms177410%28v=sql.105%29.aspx?f=255&MSPPError=-2147217396