1. Total participation is where each entity participates in at least one relationship in the relationship set. True False 2. To get a relation into 2NF from 1NF, we must remove partial dependencies. True False 3. Degree of a relationship set expresses the number of entities to which another entity can be associated via the relationship set, while cardinality of a relationship set refers to the number of entity sets that participate in the relationship set. True False A database has one physical schema, but many conceptual (logical) schemas and external schemas (views). True False
1. Total participation is where each entity participates in at least one relationship in the relationship set. True False 2. To get a relation into 2NF from 1NF, we must remove partial dependencies. True False 3. Degree of a relationship set expresses the number of entities to which another entity can be associated via the relationship set, while cardinality of a relationship set refers to the number of entity sets that participate in the relationship set. True False A database has one physical schema, but many conceptual (logical) schemas and external schemas (views). True False
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
1. Total participation is where each entity participates in at least one relationship in the relationship set.
True
False
2. To get a relation into 2NF from 1NF, we must remove partial dependencies.
True
False
3. Degree of a relationship set expresses the number of entities to which another entity can be associated via the relationship set, while cardinality of a relationship set refers to the number of entity sets that participate in the relationship set.
True
False
A
True
False
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