There is no object on earth which cannot be looked at from a cosmic point of view.


Topics Covered in This Chapter

What Are Views?

Anatomy of a View

Determining and Defining Views

Case Study


Review Questions

What Are Views?

As you learned in Chapter 3, “Terminology,” a view is a virtual table composed of fields from one or more tables in the database; it can also include fields from other views. The tables and views that comprise a given view are known as the view’s base tables. A view is “virtual” because it draws data from base tables rather than storing data on its own. In fact, the only information about a view that is stored in the database is its structure; the RDBMS rebuilds and “repopulates” ...

Get Database Design for Mere Mortals®: A Hands-on Guide to Relational Database Design, Third Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.