Domain
Core DatabaseA user-defined data type based on an existing type with additional constraints. Useful for enforcing business rules (e.g., a positive_integer domain that wraps INTEGER with a CHECK (value > 0) constraint).
A user-defined data type based on an existing type with additional constraints. Useful for enforcing business rules (e.g., a positive_integer domain that wraps INTEGER with a CHECK (value > 0) constraint).