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freetds - RE: [freetds] perl sybase driver problem

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  • From: "Lowden, James K" <LowdenJK AT bernstein.com>
  • To: 'FreeTDS Development Group' <freetds AT lists.ibiblio.org>
  • Cc: "'swilli40 AT hotmail.com'" <swilli40 AT hotmail.com>
  • Subject: RE: [freetds] perl sybase driver problem
  • Date: Tue, 28 Oct 2003 11:37:33 -0500

> From: Shane [mailto:swilli40 AT hotmail.com]
> Sent: October 28, 2003 7:11 AM
>
> Please mail this address, as I probably wont be able to read
> the mailing list.
>
> I installed freetds to allow me to connect to a mssql 2000
> database. The installation went well and all tests passed
> when i ran 'make check'.
>
> tsql can succesfully connect to the database and i can run queries.
>
> the problem:
> i want to use perl DBD::Sybase to connect and run queries,
> but I keep getting errors. I have installed the latest
> DBD::Sybase, which didn't work because it was asking for
> config files. I reverted to 0.91 version of this driver

You're really better off getting the latest of both. The latest DBD::Sybase
is 1.01. 0.91 hasn't been used since my grandfather sold his horse.

DBD::Sybase 1.00 with FreeTDS 0.61 (or later) will definitely connect to SQL
Server 2000. We offer a money-back guarantee on that. ;-)

> Does this
> driver use the freetds libs? Does the freetds.conf get used
> at all when using the sybase driver?

Just to be clear, the layers are:

Perl
uses DBI
uses DBD::Sybase
uses "ct-lib" API
implemented by FreeTDS

DBD::Sybase doesn't communicate directly to the database server; it relies
on a ct-lib implementation, either ours or Sybase's.

With your connect string, you indicate what server to connect to.
DBD::Sybase passes that information to FreeTDS, which looks it up in
freetds.conf.

> -> connect for DBD::Sybase::dr
> (DBI::dr=HASH(0x4012fbcc)~0x400392e4 'server=RATIONAL_DB'
> 'clearquest_admin' **** HASH(0x401d5bec)) thr#4001bcd8
> OpenClient message: LAYER = (7) ORIGIN = (2) SEVERITY = (6)
> NUMBER = (6)
> Message String: ct_con_alloc(): unable to get layer message
> string: unable to get origin message string: error string not
> available
> ct_con_alloc failed at

It looks like you're not connecting. Could be many things, a TDSDUMP log
would make that clear. Since you have tsql working, it's probably just a
matter of using the right connect string. But upgrading the driver would be
good idea in any case.

HTH.

--jkl


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