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No SQL Databases - Landscape - 1
Submitted by admin on Tue, 2010-01-05 23:41
The need to look at Non SQL systems arises out of scalability issues with relational databases, which are a function of the fact that relational databases were not designed to be distributed (which is key to write scalability), and could thus afford to provide abstractions like ACID transactions and a rich high-level query model.
All NoSQL databases try and address the scalability issue in many ways – by being distributed, by providing a simpler data / query model, by relaxing consistency requirements, etc