Relational model

The relational model for management of a database is a data model based on predicate logic and set theory.

Implementation

There have been several attempts to produce a true implementation of the relational database model originally developed by Codd, Date, Darwen and others, but none have been popular successes so far. Rel is one of the more recent attempts to do this. SQL uses concepts "table", "column", "row" instead of "relvar", "attribute", "tuple".

Related Topics:
Codd - Date - Darwen

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