In the previous two chapters, you saw how to access the file system to read and save information in a durable way. You’ve been given all the tools for dealing with either a custom file format or a treelike information representation such as JSON.
However, in most production system applications, you aren’t working with files. Instead, a database management system (DBMS) is used to store the application’s information and keep it safe. Furthermore, most DBMSs provide functionalities such as transactions, logging, ...
