HOW DOES TUPLE-ORIENTED RELATIONAL CALCULUS DIFFER FROM DOMAIN-ORIENTED RELATIONAL CALCULUS?

Sumit Kesarwani

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  1. Sumit Kesarwani

    Post:782

    Points:3910
    How does Tuple-oriented relational calculus differ from domain-oriented relational calculus?

    The tuple-oriented calculus uses a tuple variables i.e., variable whose only permitted values are tuples of that relation. E.g. QUEL

    The domain-oriented calculus has domain variables i.e., variables that range over the underlying domains instead of over relation. E.g. ILL, DEDUCE.

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