Get Dynamic Pivot Result into temp table SQL Server - sql-server

Question

I want to get dynamic pivot result into temp table by which I can send it back to C# code using select query.
DECLARE #partymasterid bigint = 2;
DECLARE #cols AS NVARCHAR(MAX);
DECLARE #query AS NVARCHAR(MAX);
SELECT
#cols = STUFF((SELECT DISTINCT '[' + CAST(dbo.InventoryProductMaster.Name AS nvarchar(max)) + '],'
FROM dbo.InventoryBiltyMaster
INNER JOIN dbo.InventoryPartyProductPriceMaster ON dbo.InventoryBiltyMaster.InventoryPartyProductPriceMasterID = dbo.InventoryPartyProductPriceMaster.ID
INNER JOIN dbo.InventoryProductMaster ON dbo.InventoryPartyProductPriceMaster.InventoryProductMasterID = dbo.InventoryProductMaster.ID
WHERE dbo.InventoryBiltyMaster.PartyMasterID = #partymasterid
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 0, '');
SELECT #query =
'
SELECT
*
FROM
(SELECT
Count(dbo.InventoryBiltyMaster.ID) AS BiltyCount,
--dbo.InventoryBiltyMaster.InventoryProductMasterID,
--dbo.InventoryBiltyMaster.VehicleMasterID,
dbo.InventoryProductMaster.Name,
dbo.VehicleMaster.VehicleNumber
FROM
dbo.InventoryBiltyMaster
INNER JOIN dbo.InventoryPartyProductPriceMaster ON dbo.InventoryBiltyMaster.InventoryPartyProductPriceMasterID = dbo.InventoryPartyProductPriceMaster.ID
INNER JOIN dbo.InventoryProductMaster ON dbo.InventoryPartyProductPriceMaster.InventoryProductMasterID = dbo.InventoryProductMaster.ID
INNER JOIN dbo.VehicleMaster ON dbo.InventoryBiltyMaster.VehicleMasterID = dbo.VehicleMaster.ID
WHERE
dbo.InventoryBiltyMaster.PartyMasterID = ' + CAST(#partymasterid as nvarchar(50)) + '
GROUP BY
dbo.InventoryBiltyMaster.InventoryProductMasterID,
dbo.InventoryProductMaster.Name,
dbo.InventoryBiltyMaster.VehicleMasterID,
dbo.VehicleMaster.VehicleNumber
)
AS S
PIVOT
(
MAX(BiltyCount)
FOR [Name] IN (' + LEFT(#cols, LEN(#cols)-1) + ')
)AS pvt';
EXEC SP_EXECUTESQL #query
Here may be result have 3 column or 5 columns or 10-15 columns. it depends on the result of query. and this result i want on temp table for use more this data.
I want to use it in a stored procedure to send back result into ASP.NET MVC 5 with Entity Framework

Answer 1

You can't store inside a # (temp table) without defining it in the parent scope when using sp_executesql. In your case you have a dynamic pivot and you don't know what and how many columns are going to be there.
sp_executesql runs in a different session (sp_executesql creates its own session) and temp tables are session specific.
For your scenario you can use ## (global temp table). You can change your query like following.
SELECT #query =
'
SELECT
* into ##temp
FROM
(SELECT
Count(dbo.InventoryBiltyMaster.ID) AS BiltyCount,
--dbo.InventoryBiltyMaster.InventoryProductMasterID,
--dbo.InventoryBiltyMaster.VehicleMasterID,
dbo.InventoryProductMaster.Name,
dbo.VehicleMaster.VehicleNumber
FROM
dbo.InventoryBiltyMaster
INNER JOIN dbo.InventoryPartyProductPriceMaster ON dbo.InventoryBiltyMaster.InventoryPartyProductPriceMasterID = dbo.InventoryPartyProductPriceMaster.ID
INNER JOIN dbo.InventoryProductMaster ON dbo.InventoryPartyProductPriceMaster.InventoryProductMasterID = dbo.InventoryProductMaster.ID
INNER JOIN dbo.VehicleMaster ON dbo.InventoryBiltyMaster.VehicleMasterID = dbo.VehicleMaster.ID
WHERE
dbo.InventoryBiltyMaster.PartyMasterID = ' + CAST(#partymasterid as nvarchar(50)) + '
GROUP BY
dbo.InventoryBiltyMaster.InventoryProductMasterID,
dbo.InventoryProductMaster.Name,
dbo.InventoryBiltyMaster.VehicleMasterID,
dbo.VehicleMaster.VehicleNumber
)
AS S
PIVOT
(
MAX(BiltyCount)
FOR [Name] IN (' + LEFT(#cols, LEN(#cols)-1) + ')
)AS pvt';
EXEC SP_EXECUTESQL #query
--now you can use ##temp
Note: use of global temp table can lead to unpredictable behavior if it gets updated from multiple sessions, you may think of giving a unique name for each session.