Basic operators:

1) Select (6)

• Used to select the rows from relation based on condition.

• Consider a relation as:

emp(Id, Name, email, age)

• eg

$age\gt_{20}^{(emp)}$

• Generalized syntax is

$condition^{(R)}$

• Above example displays all rows satisfying the condition.

2) Project (2)

• Used to display only required attributes from a relation.

• Generalized …