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How does Tuple-oriented relational calculus differ from domain-oriented relational calculus ?

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How does Tuple-oriented relational calculus differ from domain-oriented relational calculus ?
posted Feb 1, 2014 by Gaurav Sharma

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1 Answer

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  1. The tuple-oriented calculus uses a tuple variables i.e., variable whose only permitted values are tuples of that relation. E.g. QUEL
  2. The domain-oriented calculus has domain variables i.e., variables that range over the underlying domains instead of over relation. E.g. ILL, DEDUCE.
answer Feb 2, 2014 by Vikas Upadhyay
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