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Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers | Set 2
List of Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers
6) Which symbol is used for Cartesian product?
- ∏
- ∪
- −
- Χ
7) Which symbol is used for Union?
- ∏
- ∪
- −
- Χ
8) Which symbol is used for Set Difference?
- ∏
- ∪
- −
- Χ
9) Which symbol is used for Select Operation?
- σ
- ∪
- −
- Χ
10) Which symbol is used for Rename Operation?
- σ
- ∪
- −
- ρ