What exactly is NoSQL?

Posted by bodacydo on Stack Overflow See other posts from Stack Overflow or by bodacydo
Published on 2010-01-31T19:55:45Z Indexed on 2010/03/16 19:21 UTC
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nosql

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database

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definition

What exactly is NoSQL? Is it database systems that only work with {key:value} pairs?

As far as I know MemCache is one of such database systems, am I right?

What other popular NoSQL databases are there and where exactly are they useful?

Thanks, Boda Cydo.

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