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Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique)) City (serialNo: integer (unique, not null), CountrylD:Integer, CityName: String, Population: integer) A city can have unknown serialNo? O Yes. O No, violates domain constraints. O No, violates key constraint. ) No, violates referential integrity constraint.

Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique)) City (serialNo: integer (unique, not null), CountrylD:Integer, CityName: String, Population: integer) A city can have unknown serialNo? O Yes. O No, violates domain constraints. O No, violates key constraint. ) No, violates referential integrity constraint.

Computer Networking: A Top-Down Approach (7th Edition)
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...
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QUESTION 15 Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique) City (serialNo: integer (unique, not null), CountrylD: Integer, CityName: String, Population: integer) A city can have unknown serialNo? O Yes. No, violates domain constraints. O No, violates key constraint. O No, violates referential integrity constraint.
Transcribed Image Text:QUESTION 15 Consider the database schema below for cities in countries. A country have many cities, and the same city name can be found in different countries. Country (ID: integer, Name: String (unique) City (serialNo: integer (unique, not null), CountrylD: Integer, CityName: String, Population: integer) A city can have unknown serialNo? O Yes. No, violates domain constraints. O No, violates key constraint. O No, violates referential integrity constraint.
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