Обсуждение: Create connection with Oracle database from Postgres plpgsql function

<div class="Section1"><p class="MsoNormal"><font face="Verdana" size="2"><span style="font-size:10.0pt;
font-family:Verdana">How can we create connection with Oracle database from Postgres plpgsql function and execute some
oraclestored procedure?</span></font><p><font face="Verdana" size="2"><span style="font-size:10.0pt">Thanks<br />
Dinesh</span></font><p><fontface="Verdana" size="2"><span style="font-size:10.0pt"> </span></font><p
class="MsoNormal"><fontface="Times New Roman" size="3"><span style="font-size: 
12.0pt"> </span></font></div>

On Jul 5, 2005, at 6:40 PM, Dinesh Pandey wrote:

> How can we create connection with Oracle database from Postgres  
> plpgsql function and execute some oracle stored procedure?

I don't think it's possible with plpgsql. Try DBI-link.
<http://pgfoundry.org/projects/dbi-link/>

Michael Glaesemann
grzm myrealbox com

Dinesh Pandey wrote:
> How can we create connection with Oracle database from Postgres plpgsql
> function and execute some oracle stored procedure?
> 
> Thanks
> Dinesh
You can use perl DBI to access Oracle, providing you have DBI and the plperlu
language installed.

Sample code that may help you get started (lookout for typos):

create or replace function connect_ora() returns void as $$
use DBI;
&main;
sub main { my $query="select 1 from dual"; my $dbh=openDatabase(); if ($dbh==0) { return; } my $sth = $dbh->prepare(
$query,{ora_check_sql => 0} ) || elog NOTICE, "Can't
 
prepare SQL statement: $DBI::errstr\n"; $sth->execute() || elog ERROR, "Cant execute SQL statement: $DBI::errstr\n"; my
$array_ref= $sth->fetchall_arrayref(); $sth->finish(); $dbh->disconnect() || elog WARNING, "Disconnection from db
failed\n";RETURN;
 
}
sub openDatabase {   $dbh =
DBI->connect_cached("dbi:Oracle:host=<host>;sid=<sid>;port=<port>",<ora_username>,<ora_pwd>)
|| elog ERROR, $DBI::errstr;   $dbh->{RowCacheSize} = 100; return $dbh;
}
$$ language plperlu;


Customize as you see fit. YMMV

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