What is a range domain used for in database management?

A range domain is a critical component in database management that is specifically utilized to define the allowable range of values for numeric attributes. This aspect of database design ensures data integrity and validity by enforcing constraints on what values can be entered into a numeric field. For example, if a database field is designed to store age, a range domain can restrict the values to a defined minimum (like 0) and a maximum (like 120), thus preventing invalid data entries that could compromise the quality and reliability of the dataset.

By implementing a range domain, database administrators can significantly reduce the likelihood of errors and ensure that data remains consistent and meaningful throughout its lifecycle. This is particularly important in applications where the accuracy of numeric data affects calculations, reporting, and decision-making processes.

The other choices, while related to various aspects of database management, do not accurately describe the function of a range domain. Defining relationships between tables pertains to foreign keys and referential integrity, restricting access relates to security and permissions, and categorizing data based on usage frequency deals with data profiling and query optimization rather than value constraints.