DBD::AnyData supports this. I haven't used it, but it appears to be as simple as passing it a reference to an array of rows (look at the section on "in-memory tables"). I've seen a number of Monks recommend this module and there is a PM review of it online as well.

In reply to Re: Querying a Hash like a database by Errto
in thread Querying a Hash like a database by dbritt

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