FreeTDS Development Group

[Eric Deutsch <edeutsch AT systemsbiology.org>]

Has anyone out there actually gotten DBD::ODBC to work with FreeTDS?  I
got it all compiled and configured without too much trouble, but with a
perl snippet like this:

  $dbh = DBI->connect ($dsn, $user_name, $password, \%attr )
    or bail_out ("Cannot connect to database");
  my $sql="SELECT \@\@SERVERNAME AS 'Servername',\@\@VERSION AS 'Version'";
  $sth = $dbh->prepare ($sql) or bail_out ("Cannot prepare query");
  $sth->execute () or bail_out ("Cannot execute query");

  print join(" | ",@{$sth->{NAME}}),"\n";
  my (@result) = $sth->fetchrow_array() || bail_out("No records in set!");
  print join(" | ",@result),"\n";

I get:

query = SELECT @@SERVERNAME AS 'Servername',@@VERSION AS 'Version'
SERVERNAME | VERSION
No records in set!
Error  ()
Segmentation fault (core dumped)

So, the connection works.  The execute works.  I do get the column names
back as desired (although they're forced to caps which is curious).  But
the result returns empty record set.  And then the program appears to seg
fault after that.  More testing indicates that the finish() and the
disconnect() execute okay, but upon exiting perl, I get the seg fault.
If I run the same program with DBD::Sybase, I get:

Servername | Version
MSSQL01 | Microsoft SQL Server  2000 - 8.00.194 (Intel X86)
        Aug  6 2000 00:57:48
        Copyright (c) 1988-2000 Microsoft Corporation
        Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 2)

In general, I use DBD::Sybase for a lot of stuff, it's just the DBD::ODBC
that's new to me.

So the question I have: has anyone gotten a similar configuration to work
at all?  i.e.
  Red Hat 7.2 +
  Perl 5.6.0 +
  DBI 1.18 +
  DBD::ODBC 0.30 +
  unixODBC 2.0.7 +
  FreeTDS 0.53 latest CVS +
  MS SQL Server 2000 no SP

I cannot seem to even get basic stuff to work.

thanks!
Eric



On Sun, 24 Mar 2002, Brian Bruns wrote:

>
> The message is true, placeholders are only supported under TDS 5.0 (and
> even then support is flakey).  For placeholders with TDS 7.0, I'd
> recommend trying out DBD::ODBC which supports a bind column type option.
>
> Brian
>
> On Fri, 22 Mar 2002 wsheldah AT lexmark.com wrote:
>
> >
> >
> > Hi,
> >
> > I'm using freeTDS to access MS SQL Server 2000 from a perl module running 
> > on an
> > intel linux box, via DBD::Sybase. freeTDS was compiled to use TDS 7.0.
> >
> > The problem is when I execute a simple query that has a placeholder, like
> > "select name from mytable where id=?" in perl, I get the following error
> > message:
> >      "Dynamic placeholders only supported under TDS 5.0"
> >
> > Are they truly not supported under TDS 7.0, or should the test be changed 
> > to
> > check for TDS versions less than TDS 5.0 instead of only equal to TDS 
> > 5.0? Any
> > specific patches available, and if not, would this be safe for me to patch
> > directly? Thanks again,
> >
> > Wes Sheldahl
> >
> >
> >
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>
>
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-- 
----------------------------------------------------------------------
Eric Deutsch                        email: edeutsch AT systemsbiology.org
Institute for Systems Biology                    Voice: (206) 732-1397
1441 N 34th St                                     FAX: (206) 732-1260
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