Give a specific example showing a change happening in one table when a update happens in another. The change happens because one table has a foreign key constraint with ON UPDATE CASCADE. Show the changes made in the two tables and explain the foreign key. Be sure to indicate which change was made first, and which change was made as a result of the cascading.
Give a specific example showing a change happening in one table when a update happens in another. The change happens because one table has a foreign key constraint with ON UPDATE CASCADE. Show the changes made in the two tables and explain the foreign key. Be sure to indicate which change was made first, and which change was made as a result of the cascading.
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter10: Transaction Management And Concurrency Control
Section: Chapter Questions
Problem 1P
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Give a specific example showing a change happening in one table when a
update happens in another. The change happens because one table has a
foreign key constraint with ON UPDATE CASCADE. Show the changes
made in the two tables and explain the foreign key. Be sure to indicate
which change was made first, and which change was made as a result of
the cascading.
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