<database> (PE) Groups of logically related fields which occur multiple
times within a group.
Periodic groups are a non-relational technique. An example of a PE would be for
storing the history of a person's name changes, where name was kept in logically
related fields such as surname, first name and middle name - with the person
having changed their name more than once.
perf « perfect programmer syndrome « PERFORM «
periodic group » peripheral » Peripheral
Component Interconnect » peripheral device