L7-RELATIONAL ALGEBRA -SET1

4 flashcards · Computer Science · by Manochitra Mariappan

1. _________

   relational algebra

2. ______________is used for selecting a subset of the tuples according to a given selection condition.

   select opeartion

3. ________ method defines a relation that contains a vertical subset of Relation

   projection

4. ____________ is a unary operation used for renaming attributes of a relation.

   rename