Contrary to popular belief, SQL and noSQL are really just two sides of the same coin
From the article:
In this article we present a mathematical data model for the most common noSQL databases—namely, key/value relationships—and demonstrate that this data model is the mathematical dual of SQL’s relational data model of foreign-/primary-key relationships. Following established mathematical nomenclature, we refer to the dual of SQL as coSQL. We also show how a single generalization of the relational algebra over sets—namely, monads and monad comprehensions—forms the basis of a common query language for both SQL and noSQL. Despite common wisdom, SQL and coSQL are not diabolically opposed, but instead deeply connected via beautiful mathematical theory.
Just as Codd’s discovery of relational algebra as a formal basis for SQL shifted the database industry from a monopolistically competitive market to an oligopoly and thus propelled a billion-dollar industry around SQL and foreign-/primary-key stores, we believe that our categorical data-model formalization model and monadic query language will allow the same economic growth to occur for coSQL key-value stores.
Considering the authors’ claim that the current SQL oligopoly is woth $32 billion and still growing in double digits, color me interested!
😉
Since they are talking about query languages, maybe the TMQL editors should take a look as well.