DBMS Flashcards
1
Q
What is this symbol? ⋈
A
Join symbol
2
Q
What is this symbol? ×
A
Cartesian Product
3
Q
What is this symbol? σ
A
Selection Symbol
4
Q
What is this symbol? π
A
Projection Symbol
5
Q
What is this symbol? ∪
A
Union Symbol
6
Q
What is this symbol? ∩
A
Intersection Symbol
7
Q
What is this symbol? −
A
Difference Symbol
8
Q
What is this symbol? Σ
A
Summation
