Database Design: Relation Model

Relational Model
Introduction

Proposed by E.F. Codd in early seventies.
.. Most of the modern DBMS are relational.
.. Simple and elegant model.
.. Led to the development of a theory of data
.. Dependencies and database design.
.. Relational algebra operations –
Crucial role in query optimization & execution.
.. Led to the development of database standard SQL

By Prof. P.Sreenivasa Kumar, IIT Chennai

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