MySQL is feature-rich. Over the past three chapters, you’ve seen the wide variety of techniques that can be used to query, modify, and manage data. However, there’s still much more that MySQL can do, and some of those additional features are the subject of this chapter.
In this chapter, you’ll learn how to:
Insert data into a database from other sources, including with queries and from text files
Perform updates and deletes using multiple tables in a single statement
Use MySQL functions in queries to meet more complex information needs
Analyze queries using the
EXPLAIN statement and then improve their
performance with simple optimization techniques