Define the principle for creating a database

Define the principle for creating a database

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Reference no: EM133012

Question

Think of a principle for creating a database and illustrate the database. Clarify why you would want to use a database for this purpose.

1. What instance could you offer that would demonstrate using a subquery?

2. What illustration could you offer that would demonstrate using a join?

3. In your view, would you prefer using subqueries, or joins, and why?

4. What are a number of performance considerations while determining whether to use subqueries or joins?

Reference no: EM133012

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