The relational model of data and cylindric algebras (Q761801)
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scientific article; zbMATH DE number 3888947
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The relational model of data and cylindric algebras |
scientific article; zbMATH DE number 3888947 |
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The relational model of data and cylindric algebras (English)
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1984
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Tarski's cylindrical algebras provide a new insight into Codd's relational model of data. In this sense the ''join'' operation becomes set -theoretical intersection. It shows that the relational algebra in general is not finitely axiomatizable and the equivalence problem of relational expressions in undecidable. The project-join and select union duality problem is also discussed.
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relational data
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join duality
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cylindrical algebras
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relational algebra
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