Question

what are symbols that satisfy the operation to be performed?
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Answer 1

Answer:

Operator – The symbol indicating a math operation is an operator, for example: + for addition. − for subtraction. × for multiplication. ÷ for division.

Answer 2

Basic SQL Relational Algebra Operations

Basic SQL Relational Algebra OperationsRelational Algebra devided in various groups

Unary Relational Operations

• SELECT (symbol: σ)

• PROJECT (symbol: π)

• RENAME (symbol: ρ)

Relational Algebra Operations From Set Theory

• UNION (υ)

• INTERSECTION ( ),

• DIFFERENCE (-)

• CARTESIAN PRODUCT ( x )

Binary Relational Operations

• JOIN

• DIVISION