Re: PERL DBI connection to Remote Oracle Database
- From: "Stefan Knecht" <knecht.stefan@xxxxxxxxx>
- To: smishra_97@xxxxxxxxx
- Date: Tue, 28 Aug 2007 21:35:00 +0200
You have 2 listeners ? One of them happen to listen on port 1521 ? Does the
database in question show up if you query the services of that listener
(lsnrctl serv <listener_name_on_port_1521>) -- perhaps the database
registered itself on that listener without you knowing.
Stefan
On 8/28/07, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote:
>
> Ron
>
> It is working and I am trying to understand as how it is making connection
> even the Port is not defined. On Remote DB server, I am running two
> listener. How this program use SID defined in Perl to connect to correct
> instance.
>
>
>
> *"Reidy, Ron" <Ron.Reidy@xxxxxxxxxxxxxxxxxx>* wrote:
>
> My guess is it won't make a connection except for the default ports. What
> happens if you try it yourself with a small program?
>
> Ron Reidy
> Lead DBA
>
>
> ------------------------------
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Sanjay Mishra
> *Sent:* Tuesday, August 28, 2007 8:42 AM
> *To:* oracle-l@xxxxxxxxxxxxx
> *Subject:* PERL DBI connection to Remote Oracle Database
>
> Hi
>
> I am working on exsiting Perl program and found that it is usinf DBI to
> connect to Remote Database . The string used to connect the Remote database
> doesn't have PORT. Connection is going fine. Remote database is listening on
> PORT 1523 and not the Default 1521.
>
> I checked the Manual and it says the following but still not clear as if
> it only check on 1521 and 1526 or others. Any ideas as how it will work if
> Port is not specified like even shown below in the Doc statement
> Connecting without environment variables or tnsname.ora file If you use
> the host=$host;sid=$sid style syntax, for example:
>
> $dbh = DBI->connect("dbi:Oracle:host=myhost.com;sid=ORCL", $user, $passwd);
>
> then DBD::Oracle will construct a full connection descriptor string for
> you and Oracle will not need to consult the tnsname.ora file.
> If a port number is not specified then the descriptor will try both 1526
> and 1521 in that order (e.g., new then old). You can check which port(s)
> are in use by typing "$ORACLE_HOME/bin/lsnrctl stat" on the server.
>
> Sanjay
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--
=========================
Stefan P Knecht
Consultant
Infrastructure Managed Services
Trivadis AG
Europa-Strasse 5
CH-8152 Glattbrugg
Phone +41-44-808 70 20
Fax +41-808 70 12
Mobile +41-79-571 36 27
stefan.knecht@xxxxxxxxxxxx
http://www.trivadis.com
=========================
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