What is 'document data store' and 'key-value data store'?

Posted by Roman on Stack Overflow See other posts from Stack Overflow or by Roman
Published on 2010-04-02T17:52:34Z Indexed on 2010/04/02 22:33 UTC
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nosql

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database

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concepts

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terminology

What is document data store? What is key-value data store?

Please, describe in very simple and general words the mechanisms which stand behind each of them.

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