Functional dependency: Difference between revisions

Content deleted Content added
Tune
Tags: Mobile edit Mobile web edit
m Lectures: fixed typo
Line 40:
* StudentID → Semester.
 
Note that if a row was added where the student had a different value of semester, thatthen the functional dependency, FD, would no longer exist. This means that the FD is implied by the data as it is possible to have values that would invalidate the FD.
 
Other nontrivial functional dependencies can be identified, for example: