repeating group
<database> Any attribute that can have multiple values associated with a
single instance of some entity. For example, a book might have multiple authors.
Such a "-to-many" relationship might be represented in an unnormalised
relational database as multiple author columns in the book table or a single
author(s) column containing a string which was a list of authors. Converting
this to "first normal form" is the first step in database normalisation. Each
author of the book would appear in a separate row along with the book's primary
key. Later nomalisation stages would move the book-author relationship into a
separate table to avoid repeating other book attibutes (e.g. title, publisher)
for each author.
(2005-07-28)
Nearby terms:
REP « repeat « repeater « repeating group »
repeat loop » repetitive strain disorder »
repetitive strain injury
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