Memory access is much faster than disk access, so if you can keep your whole database in memory, calculation can potentially happen much faster. So if you don't need the subtle relational capabilities of SQL and it can all fit in RAM, by all means stick with hashes or arrays.

-Mark

In reply to Re: Basic Perl array intersection faster than mysql query join. by kvale
in thread Basic Perl array intersection faster than mysql query join. by punch_card_don

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