Designing a new database is very similar to designing anything else, such as a building, a car, a road, a bridge through the city, or a book like this one. In this chapter, we learned about the key stages to design a new database. Next, we talked about the normal form, the process of normalizing and denormalizing data, entities, attributes, relationships, and data integrity. Then, we learned about the architecture of SQL Server databases and got an understanding of how SQL Server uses the transaction log when you execute INSERT, UPDATE, or DELETE statements in SQL Server. Finally, we learned about why it is important to choose appropriate data types for your databases.