FreeTDS Development Group

[Panos Stavroulis <pstavroulis AT yahoo.co.uk>]

Just for the record, I resolved this issue by creating all stored procs by 
the auto –script in SQL Server, then manually changing the SET ANSI_NULLS to 
OFF within the script and finally I recompiled all stored procs. It seems to 
work. Of course a client may choose to amend the ansi_nulls to ON.

Thanks,

Panos.

--- On Tue, 25/1/11, Panos Stavroulis <pstavroulis AT yahoo.co.uk> wrote:

> From: Panos Stavroulis <pstavroulis AT yahoo.co.uk>
> Subject: Re: [freetds] set ansi_nulls OFF
> To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
> Date: Tuesday, 25 January, 2011, 18:50
> Hi Bill,
> 
> Yes at the moment the set ansi-nulls seems to defaul to ON
> for some reason. I am aware that I can go to all affected
> stored procs and set it at the top within the stored proc
> but I guess if I would like to avoid this as I would have to
> re-script loads of stored procs. 
> 
> So I was wondering whether it's possible to set it on the
> freetds side so won't have to make any changes hopefully.
> 
> It's possible that my code somewhere hardcodes this to be
> always ON but if there is no option within freetds can't see
> how it can be done. 
> 
> The other solution is changing the code manually which
> shouldn't take too long with some regular expression but not
> really ideal.
> 
> Thanks very much again.
> 
> Regards,
> 
> Panos.
> 
> --- On Mon, 24/1/11, Thompson, Bill D (London) <bill.d.thompson AT baml.com>
> wrote:
> 
> > From: Thompson, Bill D (London) <bill.d.thompson AT baml.com>
> > Subject: Re: [freetds] set ansi_nulls OFF
> > To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
> > Date: Monday, 24 January, 2011, 22:54
> > Hi Panos,
> > 
> > freetds db-library *used* to connect to the database
> > "pretending" to be
> > an odbc connection (it was a little understood bit in
> the
> > TDS login
> > packet. Once we understood that bit, we unset it for
> the
> > dblib and ctlib
> > connections, viz:
> > 
> > dbproc->tds_socket->option_flag2 &=
> ~0x02; 
> > /* we're not an ODBC driver
> > */
> > 
> > in dblib.c...
> > 
> > let me explain a bit. if you look carefully in BOL for
> SET
> > ANSI_NULLS...you'll find the folowing:
> > 
> > "The SQL Server ODBC driver and Microsoft OLE DB
> Provider
> > for SQL Server
> > automatically set ANSI_NULLS to ON when connecting."
> > 
> > It's the bit in the login packet that triggers that
> > behaviour...
> > 
> > So...it should be set to OFF for a db-library
> connection.
> > but you tell
> > us it isn't...
> > 
> > tip from one in the know: check your stored procedure
> > scripts - there
> > may be a SET ANSI_NULLS ON at the top of your scripts
> ;-)
> > 
> > Bill
> > 
> > -----Original Message-----
> > From: freetds-bounces AT lists.ibiblio.org
> > [mailto:freetds-bounces AT lists.ibiblio.org]
> > On Behalf Of Panos Stavroulis
> > Sent: 24 January 2011 15:28
> > To: freetds AT lists.ibiblio.org
> > Subject: [freetds] set ansi_nulls OFF
> > 
> > 
> > Hi,
> > 
> > Do you know if the dbsetopt function supports the
> > ansi_nulls option? I
> > couldn't see anything in the library options for
> > ansi_nulls. I would
> > like to set it to  OFF for my SQL Server
> connections.
> > I have set it as
> > OFF on the SQL Server and my database but I think
> defaults
> > from the type
> > of connection you have and not from the database.
> > 
> > Has anyone come across this problem before?
> > 
> > Thanks,
> > 
> > Panos 
> > 
> > 
> >       
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