This is a problem that simply screams for a relational database. (Certainly if your data sets grow performance will become a problem without one.) Please look at DBI.

If you really want to leave your data in flat-files, you can always use DBI with DBD::CSV. (And switch to a real database later if need be.)

In reply to Re (tilly) 1: Merging Files Conundrum: A Better Explanation(?) by tilly
in thread Merging Files Conundrum: A Better Explanation(?) by Limo

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