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# Analysis and Design of Data Systems. Relational Algebra 2 (Lecture 18)

## 1.

IE301Analysis and Design of Data Systems

Lecture 18

Relational Algebra 2

Aram Keryan

November 16, 2015

## 2. Set Operations UNION, INTERSECTION, MINUS

The next group of relational algebra operations are the standardmathematical operations on sets.

MINUS

UNION

A

B

A

INTERSECTION

B

A

B

## 3. Set Operations UNION, INTERSECTION, MINUS

UNION, INTERSECTION, and MINUS are binary operations.Let’s