Enum Type

What is an Enum?

An Enum (short for "enumeration") is a specialized data type to define a predefined values set. Each value in an Enum is a named constant, which helps standardize data entry and ensures consistency across your system. Enums are particularly useful for fields that should only accept a limited, predefined set of options, providing both clarity and validation for the values.

Key Characteristics of an Enum

• Name: A unique identifier for the Enum, representing the set of predefined values.

• Values: The specific set of allowed values for the Enum. These values are fixed and predefined, ensuring that only these options can be used.

Example: For an Employee Status Enum used in an HR system:

• Name: EmployeeStatus

• Values:

  • Active

  • On Leave

  • Terminated

  • retired

• Note: The EmployeeStatus Enum ensures that the status of an employee can only be one of these predefined values, maintaining consistency and clarity in tracking employee states.