If you can install Perl, you can also install DBD::SQLite, which contains SQLite already.

You can also install DBD::CSV, which will do SQL over CSV files.

If you are all averse against installing modules, just use a hash of arrayrefs, where each hash contains as keys the join criteria for one table.

Basically, have your tables as arrays, and store in the hashe values the row indices for each row, and as keys use the join criteria.

I still recommend going with DBD::SQLite.

In reply to Re: Effective data structures for join-type lookups by Corion
in thread Effective data structures for join-type lookups by flightdm

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