Database Design: Tuple Relational calculus (TRC)

Procedural Query language

.. query specification involves giving a step by step process of obtaining the query result
e.g, relational algebra
.. usage calls for detailed knowledge of the operators involved
.. difficult for the use of non – experts

Declarative Query language

.. query specification involves giving the logical conditions the results is required to satisfy
.. easy for the use of non – experts

By Prof. P.Sreenivasa Kumar, IIT Chennai

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