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That No SQL Thing – Key / Value stores – Operations
I mentioned before that the traditional API for Key / Value stores is pretty simplistic, Get/Put/Delete over blob values. That doesn’t really give us much options,
I have a long series of posts talking about how to do a whole host of operations using this minimal API.
In practice, it is usually much better to have support for such things directly in the Key / Value store implementation. Rhino DHT has intrinsic support for lists, and Redis support plenty of operations over lists, sets and ordered sets. Most Key/Value stores offer at least the option to atomically increment a value.
For the most part, however, you can assume that if you need a lot of operations support from the Key/Value store, you are probably using the wrong backend for your tasks. Key/Value stores are just for that, if you need complex operations on the values stored there, you might be using the wrong tool.
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