In the table Enrollments (studentID, courseNo, sectionNo, grade, status), which of the followingfunctional dependency is true?A) studentID --> gradeB) studentID, courseNo, sectionNo --> grade, statusC) studentID, courseNo --> grade, statusD) grade, status --> studentID, courseNo, sectionNo

In the table Enrollments (studentID, courseNo, sectionNo, grade, status), which of the followingfunctional dependency is true?A) studentID --> gradeB) studentID, courseNo, sectionNo --> grade, statusC) studentID, courseNo --> grade, statusD) grade, status --> studentID, courseNo, sectionNo

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 18MC: Which of the following defines a relationship in which data can have multiple occurrences in each...

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Concept explainers

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.

Question

In the table Enrollments (studentID, courseNo, sectionNo, grade, status), which of the following
functional dependency is true?
A) studentID --> grade
B) studentID, courseNo, sectionNo --> grade, status
C) studentID, courseNo --> grade, status
D) grade, status --> studentID, courseNo, sectionNo

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