By Michael J. Hernandez

Pt. I. Relational Database layout -- Ch. 1. Relational Database -- Ch. 2. layout goals -- Ch. three. Terminology -- Pt. II. layout procedure -- Ch. four. Conceptual evaluation -- Ch. five. beginning the method -- Ch. 6. interpreting the present Database -- Ch. 7. constructing desk constructions -- Ch. eight. Keys -- Ch. nine. box requirements -- Ch. 10. desk Relationships -- Ch. eleven. enterprise principles -- Ch. 12. perspectives -- Ch. thirteen. Reviewing facts Integrity -- Pt. III. different Database-Design concerns -- Ch. 14. undesirable layout - What to not Do -- Ch. 15. Bending or Breaking the principles -- Pt. IV. Appendixes -- App. A. solutions to check Questions -- App. B. Diagram of the Database-Design approach -- App. C. layout directions -- App. D. Documentation varieties -- App. E. Database-Design Diagram Symbols -- App. F. pattern Designs

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These examples demonstrate that theory is relevant and very important. The chief advantage of theory is that it helps you predict outcomes; it allows you to predict what will happen if you perform a certain action or series of actions. You know if you drop a stone, it will fall to the ground. If you are agile, you can get your toes out of the way of Newton's theory of gravity. The point is that it works every time. If you chisel a stone flat and place it on another flat stone, you can predict that it will stay where you put it.

As the Internet continues to become a dominant force in the world of business and commerce, more and more database vendors are rushing to incorporate XML capabilities into their products. Note I've really only pricked the surface of XML; it does far more than I've suggested in this brief introduction. A Final Note RDBMSs now have a long history, and they continue to play a huge role in the way people, businesses, and organizations interact with their data. Their role is constantly expanding and evolving as data becomes more accessible via the Internet and businesses move at an ever-increasing pace to gain a presence on the Web.

Of course, you will naturally make some mistakes when you're designing a database, but a good methodology helps you recognize errors in your design and gives you the tools to correct them. Additionally, the organization of the techniques within the methodology keeps you from unnecessarily repeating a given design process. • It makes the design process easier and reduces the amount of time you spend designing the database. You will inevitably waste valuable time taking an arbitrary trial-and-error approach to design because it lacks the logic and organization that a good methodology provides.

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Database design for mere mortals. A hands-on guide to relational database design by Michael J. Hernandez

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