Not sure why you are using a Berkeley DB, but as a alternative you could use the CSV file itself as the database. Take a look at DBD::CSV.

If you spot any bugs in my solutions, it's because I've deliberately left them in as an exercise for the reader! :-)

In reply to Alternative answer - use the CSV file as the database by space_monk
in thread .csv file in to hash of hashes for a Berkley DB (for a hash newbie) by Doozer

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