SQL Year summary starting from given month - sql

Question

I have the following SQL query which Display 12 months of summary report from the given date. Output shows starting from January to December for whatever the given date. I want the outcome to start from the given date's month.
If the given date is '2016-05-01' I want the output to be like this
May 16 |June 16| July 16| ........... | Jan 17 | Feb 17 | March 17 | April 17 |
How can I achieve this?
Can some one suggest?
SELECT Name,SUM(Amount) AS PremiumTot,TotType,
sum(case when month(Dates) = 1 then Tot else 0 end) Jan,
sum(case when month(Dates) = 2 then Tot else 0 end) Feb,
sum(case when month(Dates) = 3 then Tot else 0 end) March,
sum(case when month(Dates) = 4 then Tot else 0 end) April,
sum(case when month(Dates) = 5 then Tot else 0 end) May,
sum(case when month(Dates) = 6 then Tot else 0 end) June,
sum(case when month(Dates) = 7 then Tot else 0 end) July,
sum(case when month(Dates) = 8 then Tot else 0 end) Aug,
sum(case when month(Dates) = 9 then Tot else 0 end) Sep,
sum(case when month(Dates) = 10 then Tot else 0 end) Oct,
sum(case when month(Dates) = 11 then Tot else 0 end) Nov,
sum(case when month(Dates) = 12 then Tot else 0 end) Dece
FROM
(
SELECT InvoiceMasterID,Dates ,Name,CompanyCommission AS Tot ,0 AS Expences,Amount,1 as TotType
FROM CommissionView
UNION ALL
SELECT InvoiceMasterID,Dates,Name, 0 AS Tot ,-AgentCommission AS Expences,Amount,2 as TotType
FROM CommissionViewCredit
) a
WHERE Dates between #fromDates AND Datesadd(yy,1,#fromDates)
GROUP BY Name,TotType

Answer 1

Seems, you want to pivot data. So, use PIVOT table!
If you want to create dynamic columns from given date, use CTE (Common Table Expressions)!
--declare variables for given date range
DECLARE #startDate DATE = '2016-05-01'
DECLARE #endDate DATE = DATEADD(mm,11,#startDate)
--declare variable to store months as: [month1], [month2], [etc.]
DECLARE #Months VARCHAR(1000) = ''
--use cte to create range of dates
;WITH MyDates AS
(
SELECT #startDate AS MyDate
UNION ALL
SELECT DATEADD(mm,1,MyDate) AS MyDate
FROM MyDates
WHERE MyDate<#endDate
)
SELECT #Months = STUFF((SELECT '],[' + CONVERT(VARCHAR(7), MyDate, 121)
FROM MyDates
FOR XML PATH('')), 1, 2, '') + ']'
--PRINT #Months:
-- prints: [2016-05],[2016-06], ... ,[2017-04]
DECLARE #qry NVARCHAR(MAX) = ''
SET #qry = N'SELECT ' + #Months +
' FROM ( ' +
' SELECT CONVERT(VARCHAR(7), Dates, 121) AS MyDate, CompanyCommission AS Tot ' +
'FROM CommissionView ' +
') AS DT ' +
'PIVOT (SUM(Tot) FOR MyDate IN(' + #Months + ')) AS PT'
EXEC (#qry)
For further information, please see:
Dynamic PIVOT
Pivots with dynamic columns
CAST and CONVERT
Good luck!