In This Chapter
The first step in creating a database is to construct a data model: a precise, complete definition of the data to be stored. This chapter contains a cursory overview of one method of doing this. Chapter 9, "Implementing Your Data Model" describes how to implement a data model once you design it. The data model shown in this chapter assumes a relational database. It does not show how to construct a data model for an object-relational database. Nonetheless, in a general sense, the entity-relationship diagrams shown in this chapter can be used to design a data model for an object-relational database.
To understand the material in this chapter, you should have a basic understanding of SQL and relational database theory.
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