You dont really need multiple databases, unless you have massive databases that is. Normal use wouldn't really cause much of a hit on a database, but if you have a ten gig database that is getting hammered all the time you might want to separate it into ten 1 gig databases and query then all at the same time - it would take much less time to return a result.
Last edited by php_rules : 02-04-09 at 06:32.
Reason: grammar
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