Ds week 3

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please refer the word document

1. Discussion 2 (Chapter 6):  How can the key and foreign key constraints be enforced by the DBMS? Is the enforcement technique you suggest difficult to implement? Can the constraint checks be executed in an efficient manner when updates are applied to the database?

2. Discussion 1 (Chapter 8):  What is the FUNCTION operation? For what is it used? And Present a practical example/ scenario.

Each question one page

· There must be at least one APA formatted reference (and APA in-text citation) to support the thoughts in the post as needed.  Do not use direct quotes, rather rephrase the author’s words and continue to use in-text citations.

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