How to see temp table created by code in sql server?

Question

I create a global temp table (i.e ##TheTable) using C# code. I want to be able to see that temp table in SQL server management studio after the code runs completely.

Is it possible to do this ? If yes, then how ?

Answer 1

After the code has finished and the session is closed, the temporary table will cease to exist. If you want to see it in SQL Server Management Studio (SSMS), you need to keep the code session open until the data has been reviewed in SSMS.

Per Technet:

Global temporary tables are visible to any user and any connection after they are created, and are deleted when all users that are referencing the table disconnect from the instance of SQL Server.

As an alternative, there's a C# code option here that selects the data from the temporary table into a code variable for review in the code ... (and if the code is to exist, you could possibly write it to a file or review by another means) -- see: https://stackoverflow.com/a/6748570/3063884

Answer 2

All temp tables are logged under SQL server > Databases > System Databases > tempdb -> Temporary Tables

Answer 3

Create a test table

SELECT * INTO ##temp1
FROM dbo.SomeTable_Name

Now to check if table is there

SELECT  * FROM tempdb.dbo.sysobjects O
WHERE O.xtype in ('U') 
AND O.ID = OBJECT_ID(N'tempdb..##temp1')