aspnet_regsql.exe - cannot insert null values

Im trying to setup a SQL server 2000 database to use membership & roles. Running aspnet_regsql.exe gives me the following errors

Setup failed.

Exception:
An error occurred during the execution of the SQL file 'InstallCommon.sql'. The SQL error number is 515 and the SqlException message is: Cannot insert the value NULL into column 'Column', table 'tempdb.dbo.#aspnet_Permissions_________________________________________________________________________________________________000000008000'; column does not allow nulls. INSERT fails.
Warning: Null value is eliminated by an aggregate or other SET operation.
The statement has been terminated.

------------
Details of failure
------------

SQL Server:
Database: [AddressVerification]
SQL file loaded:
InstallCommon.sql

Commands failed:

CREATE TABLE #aspnet_Permissions
(
Owner sysname,
Object sysname,
Grantee sysname,
Grantor sysname,
ProtectType char(10),
[Action] varchar(20),
[Column] sysname
)

INSERT INTO #aspnet_Permissions
EXEC sp_helprotect

IF (EXISTS (SELECT name
FROM sysobjects
WHERE (name = N'aspnet_Setup_RestorePermissions')
AND (type = 'P')))
DROP PROCEDURE [dbo].aspnet_Setup_RestorePermissions

SQL Exception:
System.Data.SqlClient.SqlException: Cannot insert the value NULL into column 'Column', table 'tempdb.dbo.#aspnet_Permissions_________________________________________________________________________________________________000000008000'; column does not allow nulls. INSERT fails.
Warning: Null value is eliminated by an aggregate or other SET operation.
The statement has been terminated.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at System.Web.Management.SqlServices.ExecuteFile(String file, String server, String database, String dbFileName, SqlConnection connection, Boolean sessionState, Boolean isInstall, SessionStateType sessionStatetype)

Ive run this many times on other servers and have never come across this problem before. Has anyone else ? Does anyone know the cause and if there is a fix ??

** I am logged in with full admin privaliges

tia

Mark.

This is because the preinstalled user defined data type sysname by default does not allow nulls--that means column of sysname data type won't accept nulls unless you explicitly set the column to allow null in column definition. So if the sp_helprotect stored procedure returns some rows with nulls in the [column] field (this is an rare issue but it does exist), the insert command will fail. So here I have to say it is a flaw of the aspnet_regsql utility.|||

I wrote a simple script to update the system table systypes to make sysname data type to accept NULLs. However the script is not fully tested and since it modifies system table directly, I don't recommend to use it and you need to consider the potential risk when using it. If some issue is caused by the script, please pass 'NoNulls' as parameter to change the systypes back to default:

CREATE PROCEDURE usp_KillUsers
@.p_DBName SYSNAME = NULL
AS

/* Check Paramaters */
/* Check for a DB name */
IF (@.p_DBName IS NULL)
BEGIN
PRINT 'You must supply a DB Name'
RETURN
END -- DB is NULL
IF (@.p_DBName = 'master')
BEGIN
PRINT 'You cannot run this process against the master database!'
RETURN
END -- Master supplied
IF (@.p_DBName = DB_NAME())
BEGIN
PRINT 'You cannot run this process against your connections database!'
RETURN
END -- your database supplied

SET NOCOUNT ON

/* Declare Variables */
DECLARE @.v_spid INT,
@.v_SQL NVARCHAR(255)

/* Declare the Table Cursor (Identity) */
DECLARE c_Users CURSOR
FAST_FORWARD FOR
SELECT spid
FROM master..sysprocesses (NOLOCK)
WHERE db_name(dbid) = @.p_DBName

OPEN c_Users

FETCH NEXT FROM c_Users INTO @.v_spid
WHILE (@.@.FETCH_STATUS <> -1)
BEGIN
IF (@.@.FETCH_STATUS <> -2)
BEGIN
SELECT @.v_SQL = 'KILL ' + CONVERT(NVARCHAR, @.v_spid)
-- PRINT @.v_SQL
EXEC (@.v_SQL)
END -- -2
FETCH NEXT FROM c_Users INTO @.v_spid
END -- While

CLOSE c_Users
DEALLOCATE c_Users

CREATE PROCEDURE sp_SetSysnameAllowNulls @.Operation varchar(10)='AllowNulls'
AS
BEGIN
DECLARE @.cmd nvarchar(4000)
EXEC sp_configure 'allow updates',1
RECONFIGURE WITH OVERRIDE
EXEC sp_msforeachdb N'use[?];
IF (DATABASEPROPERTY(db_name(),''IsReadOnly'')=1)
BEGIN
declare @.dbname sysname;
set @.dbname=db_name();
use master
EXEC usp_KillUsers @.dbname;
EXEC sp_dboption @.dbname,''read only'',''false'';
END'

IF (@.Operation = 'AllowNulls')
EXEC sp_msforeachdb N'use [?];
IF NOT EXISTS(SELECT 1 FROM systypes WHERE name=''sysname'')
PRINT ''sysname data type not found in''+ DB_NAME()
ELSE
UPDATE systypes SET status=status-1
WHERE name=''sysname'' AND (status&1)=1'
ELSE
IF (@.Operation = 'NoNulls')
EXEC sp_msforeachdb N'use [?];
IF NOT EXISTS(SELECT 1 FROM systypes WHERE name=''sysname'')
PRINT ''sysname data type not found in''+ DB_NAME()
ELSE
UPDATE systypes SET status=status+1
WHERE name=''sysname'' AND (status&1)=0'
ELSE RAISERROR('Expected @.Opertaion=''AllowNulls'' or ''NoNulls''',16,1)
EXEC sp_configure 'allow updates',0
RECONFIGURE WITH OVERRIDE
END