I finally got it to work. Thanks for your help. 
my %hash = ();

while ($connection->FetchRow()) {
    my %dataRow = $connection->DataHash();
    $hash{ $dataRow{Client_ID} } = $dataRow{Contact_Information};
    };

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In reply to Re^3: Win32::ODBC results in hash by drodinthe559
in thread Win32::ODBC results in hash by drodinthe559

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