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Databases Programming Math

SQL and NoSQL are Two Sides of the Same Coin 259

An anonymous reader writes "NoSQL databases have become a hot topic with their promise to solve the problem of distilling valuable information and business insight from big data in a scalable and programmer-friendly way. Microsoft researchers Erik Meijer and Gavin Bierman ... present a mathematical model and standardized query language that could be used to unify SQL and NoSQL data models." Unify is not quite correct; the article shows that relational SQL and key-value NoSQL models are mathematically dual, and provides a monadic query language for what they have coined coSQL.
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SQL and NoSQL are Two Sides of the Same Coin

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