Convert row data into column data using SQL Server - sql-server

Question

I would like to convert row data into columns, where the column names are not from the data. I think that using Pivot will not give me the correct solution. Please see Image of what my data looks like and how I want it to look.
The number of rows returned in the example will continue to grow over time.
My solution :
Based on #Triv answered, I have managed to solve the problem using the rank function to create a new column and then using dynamic pivot SQL to transform the data.

Answer 1

You could use a dynamic sql + PIVOT
CREATE TABLE #SampleData
(
AccountNumber int,
Product varchar(20),
ProductEndDate datetime
)
INSERT INTO #SampleData VALUES (1,'Fixed 10','2016-01-01'),(1,'Fixed 11','2016-02-01'),(1,'Fixed 13','2016-03-01'),(1,'Fixed 12','2016-04-01'),
(2,'Fixed 10','2016-01-01'),(2,'Fixed 11','2016-02-01'),(2,'Fixed 13','2016-03-01')
DECLARE #HeaderAll nvarchar(max)
DECLARE #ColumnPivotProduct nvarchar(max)
DECLARE #ColumnPivotProductEndDate nvarchar(max)
;WITH temp AS
(
SELECT DISTINCT
CONCAT('Product' ,row_number() OVER(PARTITION BY sd.AccountNumber ORDER BY sd.Product)) AS ProductGroup,
CONCAT('ProductEndDate' ,row_number() OVER(PARTITION BY sd.AccountNumber ORDER BY sd.Product)) AS ProductEndDateGroup
FROM #SampleData sd
)
SELECT #HeaderAll = STUFF((SELECT CONCAT(',',t.ProductGroup,'= MAX(',t.ProductGroup, '),', t.ProductEndDateGroup ,'= MAX(', t.ProductEndDateGroup,')') FROM temp t FOR XML PATH('')), 1,1,''),
#ColumnPivotProduct = STUFF((SELECT CONCAT(',',t.ProductGroup) FROM temp t FOR XML PATH('')), 1,1,''),
#ColumnPivotProductEndDate = STUFF((SELECT CONCAT(',', t.ProductEndDateGroup) FROM temp t FOR XML PATH('')), 1,1,'')
--SELECT #HeaderAll, #ColumnPivotProduct, #ColumnPivotProductEndDate
DECLARE #query nvarchar(max) = CONCAT(
';WITH temp AS
(
SELECT *,
CONCAT(''Product'' ,row_number() OVER(PARTITION BY sd.AccountNumber ORDER BY sd.Product)) AS ProductGroup,
CONCAT(''ProductEndDate'' ,row_number() OVER(PARTITION BY sd.AccountNumber ORDER BY sd.Product)) AS ProductEndDateGroup
FROM #SampleData sd
)
SELECT AccountNumber, ',#HeaderAll,' FROM
(
SELECT t.AccountNumber, t.Product, t.ProductEndDate, t.ProductGroup,t.ProductEndDateGroup FROM temp t
) src
PIVOT
(
MIN(Product) FOR ProductGroup IN (',#ColumnPivotProduct,')
) pvt
PIVOT
(
MIN(ProductEndDate) FOR ProductEndDateGroup IN (',#ColumnPivotProductEndDate,')
) pvt1
GROUP BY AccountNumber
')
PRINT #query
exec(#query)
DROP TABLE #SampleData
Demo link: http://rextester.com/AEQBZ56634
Note: CONCAT is avaiable in sql-server 2012+. IF you are using an older version, then use + for concatenating string

Answer 2

It works, check this out, Instead of #testTable use your table name
declare #temptable varchar(1000) = 'declare #tempTable1 table (',
#inserStatement varchar(1000) = 'insert into #tempTable1 (',
#insertValues varchar(1000) = ''
DECLARE #AcountNumber VARCHAR(50),#Product varchar(40),#ProductEndData varchar(50), #increment int = 0;
DECLARE db_cursor CURSOR FOR
select
Product,
ProductEndData from #testTable
OPEN db_cursor
FETCH NEXT FROM db_cursor INTO #Product, #ProductEndData
WHILE ##FETCH_STATUS = 0
BEGIN
set #increment = #increment+1;
SET #temptable += 'Product'+ cast(#increment as varchar) +' varchar(100),' + 'Product' + cast(#increment as varchar) + 'EndDate varchar(100),' ;
set #inserStatement += 'Product'+ cast(#increment as varchar) +',' + 'Product' + cast(#increment as varchar) + 'EndDate,';
set #insertValues += '(''' + #Product +''''+ ',' + ''''+ #ProductEndData + '''' + ')';
FETCH NEXT FROM db_cursor INTO #Product, #ProductEndData
END
CLOSE db_cursor
DEALLOCATE db_cursor
set #temptable = STUFF(#temptable, LEN(#temptable), 1, ')')
set #inserStatement = STUFF(#inserStatement, LEN(#inserStatement), 1, ')')
set #insertValues = replace(#insertValues, ')(', ',')
exec (#temptable + #inserStatement + ' values ' + #insertValues + 'select * from #tempTable1')