Accessing Pervasive.SQL With Perl

Page Last Modified: 01/02/10

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Win32::ODBC - Examples - checking for available datasources

To check what ODBC data source names (DSNs) have been created, we use the DataSources method. We then use regular expressions to filter out non-Pervasive DSNs:

use strict;
use warnings;

use Win32::ODBC;

my(%dsn, $key) = Win32::ODBC::DataSources();

foreach $key (sort keys %dsn)
{
print "$key\t-\t$dsn{$key}\n" if $dsn{$key} =~/Pervasive/;
}

DataSources creates a warning ("Use of uninitialized value in subroutine entry at ...ODBC.pm") on my ActiveState Perl 5.8 development machine due to no parameters being passed - ODBC.pm nevertheless tries to use whatever is passed through.

Compare this code to the DBI example, which of course has ODBC as just one of several drivers.

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