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For the battleships database schema defined above in question 4, write the following as tuple-based CHECK constraints. (a) No ship can be in battle before it is launched.

For the battleships database schema defined above in question 4, write the following as tuple-based CHECK constraints. (a) No ship can be in battle before it is launched.

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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The battleships database schema defined above in question 4:

Classes (class, type, country, numGuns, bore, displacement)
Ships (name, class, launched)
Battles (name, date)
Outcomes (ship, battle, result)

For the battleships database schema defined above in question 4, write the following as tuple-based CHECK constraints. (a) No ship can be in battle before it is launched.
Transcribed Image Text:For the battleships database schema defined above in question 4, write the following as tuple-based CHECK constraints. (a) No ship can be in battle before it is launched.
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