This chapter does not just deal with creating databases, tables, and querying them. It also deals with setting your database up in your Docker environment, which is a technical aspect of database knowledge that you should have.
Data is the blood of your application. It flows through your software and gives it purpose and meaning. Data shapes the state your software is in, helps you log in and log out of systems, and delivers data needed by humans to base business decisions on. When you do a credit card transaction, or just “like” someone’s photo on a social media website, ...
