Let A1, A2, and A3 be attributes in a relation R. If both of these functional dependencies hold: A1 A2 and A2 → A3, then A1 → A3 holds, because of the_? rule.
Let A1, A2, and A3 be attributes in a relation R. If both of these functional dependencies hold: A1 A2 and A2 → A3, then A1 → A3 holds, because of the_? rule.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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![Let A1, A2, and A3 be attributes in a relation R. If
both of these functional dependencies hold: A1 → A2
and A2 → A3, then A1 → A3 holds, because of the_?
rule.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fefb44227-8073-4f7e-b70d-cf264441fef3%2Fbfb2cc27-5097-479e-ba15-d3fdce8ee5b3%2Flzybya_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Let A1, A2, and A3 be attributes in a relation R. If
both of these functional dependencies hold: A1 → A2
and A2 → A3, then A1 → A3 holds, because of the_?
rule.
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