Please read the next post I put up to rephrase my question.
In all cases the connections have to 'external' - No name or password
given. The mechanism changed to the Oracle wallet in 10 for external
connections.
On Thu, 2009-10-29 at 07:15 -0400, John Scoles wrote:
> I would have to agree with martin.
>
> your best bet would be to get 1.17 ~1.20 of DBD::Oracle and then find a
> copy of the Oracle9 client It sould be able to connect to 8 and 10
> without any problem
>
> Steve Baldwin wrote:
> > Probably a silly question, but why do you need two versions of
> > DBD::Oracle? Can't you build DBD::Oracle against an Oracle client
> > that is able to connect to both versions? I know the 9i client we
> > currently use will connect to both 9i and 11g DB instances. I'm
> > pretty sure a couple of years ago we had a version that would connect
> > to Oracle 7 and 9i.
> >
> > May be a bit less hassle.
> >
> > Steve
> >
> > On Thu, Oct 29, 2009 at 6:41 AM, Martin J. Evans
> > <martin.ev...@easysoft.com> wrote:
> >
> >> jeff wrote:
> >>
> >>> Hi all,
> >>>
> >>> Hope someone can help.
> >>>
> >>> I need to talk to both an oracle 8 and oracle 10 server in the same
> >>> script using their respective "external connections" capabilities (i.e.,
> >>> no user name or password -- system authentication on 8 & wallet on
> >>> 10 ).
> >>>
> >>> Hacked up a version of DBD to get everything renamed from 'Oracle' to
> >>> 'Oracle8' and built against Oracle 8 libs. The other is built against
> >>> Oracle 10 libs. So I've 2 different builds in the same perl build:
> >>>
> >>> ./lib/site_perl/5.8.9/i686-linux/DBD/Oracle.pm
> >>> ./lib/site_perl/5.8.9/i686-linux/DBD/Oracle8.pm
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle/Oracle.h
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle/Oracle.so
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle/Oracle.bs
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle8/Oracle8.so
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle8/Oracle8.bs
> >>> ./lib/site_perl/5.8.9/i686-linux/auto/DBD/Oracle8/Oracle8.h
> >>>
> >>> ( Oracle.pm is oracle 10 & Oracle8.pm is oracle 8 )
> >>>
> >>> I'm reading from a single tns_names.ora.
> >>> ( SERV2 is Oracle 10 & SERV1 is Oracle 8 )
> >>> ORACLE_HOME is the same each time.
> >>> LD_LIBRARY_PATH includes 2 entries - 1 for Oracle 10 lib directory
> >>> and 1 for Oracle 8.
> >>> So the environment is the same every time.
> >>>
> >>>
> >>> I can:
> >>> --------------------------------------------
> >>> use DBD::Oracle8;
> >>> my $db3=DBI->connect("dbi:Oracle8:SERV1",'','');
> >>> --------------------------------------------
> >>>
> >>> Or I can:
> >>> --------------------------------------------
> >>> use DBD::Oracle;
> >>> my $db3=DBI->connect("dbi:Oracle:SERV2",'','');
> >>> --------------------------------------------
> >>>
> >>> but:
> >>> --------------------------------------------
> >>> use DBD::Oracle8;
> >>> use DBD::Oracle;
> >>>
> >>> my $db3=DBI->connect("dbi:Oracle8:SERV1",'','');
> >>> my $db3=DBI->connect("dbi:Oracle:SERV2",'','');
> >>> --------------------------------------------
> >>> Will make both connections successfully, but exits
> >>> with a segmentation fault
> >>>
> >>> Or if I reverse the connections:
> >>> --------------------------------------------
> >>> use DBD::Oracle8;
> >>> use DBD::Oracle;
> >>>
> >>> my $db3=DBI->connect("dbi:Oracle:SERV2",'','');
> >>> my $db3=DBI->connect("dbi:Oracle8:SERV1",'','');
> >>> --------------------------------------------
> >>> first connection succeeds and second fails.
> >>>
> >>>
> >>> Also, these obviously fail because of wrong Oracle version:
> >>> --------------------------------------------
> >>> use DBD::Oracle;
> >>> my $db3=DBI->connect("dbi:Oracle:SERV1",'','');
> >>> --------------------------------------------
> >>> --------------------------------------------
> >>> use DBD::Oracle8;
> >>> my $db3=DBI->connect("dbi:Oracle8:SERV2",'','');
> >>> --------------------------------------------
> >>>
> >>> Any ideas as to why? Thanks.
> >>>
> >>> Jeff
> >>>
> >> I'd hope someone else can come up with a different solution to your
> >> problem but I'd be surprised if it worked as you have done it.
> >>
> >> I'm assuming the DBD::Oracle8 is linked against a different set of
> >> client libs to DBD::Oracle?
> >>
> >> For a start, the 2 oracle client libs will export a lot of the same
> >> symbols and so when you call oci_xxx where is it resolved - in the
> >> oracle 8 client or the other one. To make this work you'd need the
> >> dynamic linker to group the symbols and work down the group - I think it
> >> /may/ be worth setting PERL_DL_NONLAZY and exporting it (or whatever it
> >> is - run make test for DBD::Oracle and watch the output looking for the
> >> xxxLAZY environment variable). If this works it pretty much proves it
> >> but I'd still hope there is a better solution.
> >>
> >> I think you have probably entered a world of pain.
> >>
> >> Martin
> >>
> >>
> >>
>
