CHAPTER 14

Understanding Databases

In this chapter, you will learn how to

•   Explain database concepts

•   Structure a database

•   Create and manage databases

Databases store data. They can be used to store banking records, grocery store inventory lists, income tax filings, smartphone app configuration settings—databases are everywhere! Database storage is persistent, meaning the data will still be there even if you reboot the database server.

The CompTIA IT Fundamentals exam will test you on your database knowledge, and as an IT professional, database knowledge is essential. This chapter first covers database concepts and then describes database structures; finally, it explains how to manipulate data.

Database Concepts

Databases are used ...

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