Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers Page 2

List of Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers

6) Which symbol is used for Cartesian product?
  1. Χ

7) Which symbol is used for Union?
  1. Χ

8) Which symbol is used for Set Difference?
  1. Χ

9) Which symbol is used for Select Operation?
  1. σ
  2. Χ

10) Which symbol is used for Rename Operation?
  1. σ
  2. ρ










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