Relational Databases

This chapter, and the ones following, will provide a high-level overview of topics related to database development. These topics will cover the theoretical aspects of relational databases. The first two chapters try to summarize theoretical topics that are seen on a daily basis. Understanding these theoretical concepts will enable developers to not only come up with clean designs but also to master relational databases.

This chapter is not restricted to learning PostgreSQL, but covers all relational databases. The topics covered in this chapter include the following:

• Database management systems
• Relational algebra
• Data modeling