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Perl Oracle connection error

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# 1  
Old 01-11-2012
Java Perl Oracle connection error
I've a Centralized Server which can connect to all Oracle Databases.

When I was trying the below code it doesn't work, But tnsping was working fine.
Code:
#!D:/perl5/bin/perl.exe

use DBI;

my $dbh = DBI->connect('dbi:Oracle:QBDIWCE', 'IDUSER', 'SECRET123#' ) || die( $DBI::errstr . "\n" ) ;

my $sth = $dbh->prepare( "SELECT username FROM dba_users;" );

$sth->execute( );

exit;

Error as follows
Code:
D:\SharedData\EDM>perl Oracle_connect_test.pl
DBI connect('QBDIWCE','IDUSER',...) failed: ORA-12154: TNS:could not resolve the connect identifier specified
(DBD ERROR: OCIServerAttach) at Oracle_connect_test.pl line 14

when I searched in Google it felt that the above Connect is to connect only to the DB which is n the same server. So my question what is the code to connect to all other DB from a Centralized server.

Thanks
Gopal
Last edited by Scott; 01-11-2012 at 02:40 PM.. Reason: Please use code tags
# 2  
Old 01-11-2012
Quote:
The connection string is always of the form: "dbi:Oracle:<db identifier>" There are several ways to identify a database:
  1. If the database is local, specifying the SID or service name will be enough.
  2. If the database is defined in a TNSNAMES.ORA file, you can use the service name given in the file
  3. To connect without TNSNAMES.ORA file, you can use an EZCONNECT url, of the form: //host[port][/service_name]
Try with:

Code:
"dbi:Oracle:host=<dbhost>;sid=<oracle_sid>;port=<port>" ..

Or just define an alias in your tnsnames.ora.
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