Formal Definition of Relational Algebra

Posted By on October 4, 2014


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Fundamental Operations
Additional Operations

Formal Definition of Relational Algebra

A basic expression consists of either
A relation in the database.
A constant relation.
General expressions are formed out of smaller subexpressions using
select (p a predicate)
project (s a list of attributes)
rename (x a relation name)
union
set difference
cartesian product

Fundamental Operations
Additional Operations

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Posted by Akash Kurup

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