CSCE 421/821, Fall 2002, Glossary 3.

Distributed:  Thursday, September 16, 2002.
To be returned: Tueday September 23, 2002.
Note: Glossaries are optional.

Specify the input and output of the following operators:

  1. Composition (of relations)
  2. Difference (of relations)
  3. Intersection (of relations)
  4. Join of relations (natural join).
  5. Projection (of relation)
  6. Selection (of relation)
  7. Union (of relation)
Do not forget to list your references.


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