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The primary key of the relation PROJECT _ TASK is a composite key consisting of the two attributes PROJECT _ NUMBER and TASK _ NUMBER.
The primary key of the relation PROJECTTASK is a composite key consisting of the two attributes PROJECTNUMBER and TASKNUMBER. It has only one nonkey attribute, STARTDATE, which is functionally dependent on the entire composite primary key. In what normal form is this relation and why?
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Database Principles Programming And Performance
Authors: Patrick O'Neil
1st Edition
1558603921, 978-1558603929
