Software for testing relational algebra

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Does anyone know of any software to let you test relational algebra queries? By this I don't mean a database such as MySQL, something where the query can be input in some for of mathematical notation instead of SQL.

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2 Answers

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If you have any experience with programming languages such as Haskell or any of the ML-variants you could just use lists and map/filter/fold. Testing queries could then be achieved by using a testing framework such as QuickCheck (assuming you by "test" mean something like checking the result of a "query" satisfy some properties).

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There is Relational:

It uses the relational algebra syntax and is available on windows and linux.

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