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Why should one use a database instead of just saving the data to disk?

Expressed in English, this says "YAGNI" of all the advanced RDBMS features.

Answer: Yes I freakin' AM gonna need it eventually

"Eventually" will very likely be "immediately" for any system that's remotely serious in any way, and being created by developers who consider themselves professionals in even the slightest sense.

Reply on news.ycombinator.com