What are entity-relationship diagrams and how are they used

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Assignment

Submit a Word document including an ERD with the answers to the following questions:

I. What is a DBMS? Briefly describe the components of a DBMS.

II. 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. Get the instant assignment help.

III. 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. Note: For the purpose of this assignment, you may use an ERD not related to this specific case study.

Reference no: EM133935286

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