The usual answer for a task such as this would be to use a database. To get a flavor of database use you might like my tutorial Databases made easy. Note that DBD::CSV lets you treat a CVS file as a database!

Something to think about is how much information about the structure of your data is reflected by the code. Neither arrays or hashes are a great fit for storing your data and manipulating it which may be why you are having trouble thinking about and coding stuff up!

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

In reply to Re: Hash of Arrays? OR Array of Hashes by GrandFather
in thread Hash of Arrays? OR Array of Hashes by fritz1968

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