You're not the only one who deals with huge tables. I haven't done the billion+ in a given table, but I have done queries against million+ JOIN million+ JOIN million+ for reports that had to return in under 5 seconds, including rendering to the user.

If you're stuck with MySQL, Access, or some other limited SQL vernacular, . . . doing significant things with the data it returns (e.g., data mining, KD, etc.)

That's funny ... I was doing data mining with MySQL. (That's those 1E18-row queries I was talking about before.) Access is limited, but it was never meant to be a RDBMS - that's what SQL*Server is for. MySQL may have been limited in the past, but it is a fully-functional RDBMS that supports ACID transactions and complete failover.

. . . a more robust DBMS that can support big chunks of that processing with its SQL syntax.

I'm curious - what's Oracle's version of LIMIT again? What about Oracle's restrictions on full-text searches? Or, how about Oracle's inability to turn ACID off when I, the developer, know I will never want it? Or, was it the overly-complicated clustering technology that Oracle itself agrees has a single failure point? Please elaborate ...

FWIW: DBI has been mentioned numerous times here; you may find SQL::Preproc' a simpler/nimbler solution.

It's also a source filter. Source filters have a few drawbacks:

Personally, I drink the "Separation-Of-Concerns" KoolAid™ and keep my Perl and SQL separate. This means using either Class::DBI (if I want an OO abstraction) or DBI (if I want performance).

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In reply to Re^2: Should it be database independent? by dragonchild
in thread Should it be database independent? by szabgab

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