Question

How could I add some items to the tempdb anytime SQL Server starts up?

I’m no expert at this, but our ASP SessionState is stored in the DB and for some reason the tempdb items used for the session state get dropped anytime the server restarts. Not only do I need to recreate the items, but I also have to recreate the User mappings to tempdb. I have a script that does it, but I can’t figure out how to run it on SQL startup

-- Use TempDB
use tempdb
go

-- Create Temp tables if they don't exist
IF NOT EXISTS(
    SELECT 1 FROM INFORMATION_SCHEMA.TABLES
    WHERE TABLE_TYPE='BASE TABLE'
    AND TABLE_NAME = 'ASPStateTempSessions')
BEGIN
    EXECUTE [ASPState].[dbo].[CreateTempTables] 
END

-- If ASPSessionState user isn't mapped to temp db, map it
IF IS_MEMBER('ASPSessionState') IS NULL
    create user ASPSessionState from login ASPSessionState

-- Give ASPSessionState user read/write permissions to tempdb
exec sp_addrolemember db_datareader, ASPSessionState 
go
exec sp_addrolemember db_datawriter , ASPSessionState 
go

Answer 1

Um, if you’ve used the standard settings to enable ASP.Net session state in tempdb, the system should have generated a stored proc (ASPState_Startup) as follows in the master database. This stored proc is configured to run automatically on SQL Server startup:

USE master
GO

DECLARE @sstype nvarchar(128)
SET @sstype = N'sstype_temp'

IF UPPER(@sstype) = 'SSTYPE_TEMP' BEGIN
    DECLARE @cmd nchar(4000)

    SET @cmd = N'
        /* Create the startup procedure */
        CREATE PROCEDURE dbo.ASPState_Startup 
        AS
            EXECUTE ASPState.dbo.CreateTempTables

            RETURN 0'
    EXEC(@cmd)
    EXECUTE sp_procoption @ProcName='dbo.ASPState_Startup', @OptionName='startup', @OptionValue='true'
END    

So, the temp tables should be being recreated anyway, unless something has been altered since installing.

If additional permissions are required, I’d look to extending the existing CreateTempTables procedure in ASPState.

---

If this isn’t working correctly, you might try using the aspnet_regsql command (found under %Windir%\Microsoft.Net\Framework\<framework version – to remove then re-add session state support to the server. You’d want to use -ssremove then -ssadd, but I’d suggest passing /? first to see all of the applicable options.