FreeTDS Development Group

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

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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