periodic group

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periodic group

(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.

[Clarification?]

(1995-10-30)