Summary
At the beginning of this chapter we looked at the importance of being concerned with database design. You now understand that database design is crucial to the integrity and consistency of the data contained in a database. We have seen that the chief problem resulting from improper or poor design is inaccurate information. Proper design is of paramount concern because bad design can adversely affect the information used by an organization.
Next, we entered into a discussion of the importance of theory, as well as its relevance to the relational database model, and you learned that the model's foundation in mathematical theory makes it a very sound and reliable structure.
Following this discussion, we looked at the advantages gained ...
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