1 describe a primary key candidate key secondary key, Ask an Expert

Engineering

1. Describe a primary key, candidate key, secondary key, foreign key, and a combination key. Use your imagination to provide an example of each key that is not in the textbook.

2. What are entity-relationship diagrams and how are they used? What symbol is used for a relationship? What is an associative entity? Provide an example.

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M92180139

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