November 2025
Beginner to intermediate
336 pages
7h 48m
English
book
SQL for Data Analytics - Fourth Edition
by Jun Shan, Haibin Li, Matt Goldwasser, Upom Malik, Benjamin Johnston
Content preview from SQL for Data Analytics - Fourth Edition
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3
Exchanging Data Using COPY
In the previous chapter, you learned about the SQL CREATE, INSERT, and DROP operations in the CRUD process. You also learned how to populate the created tables with manually written values or values from other tables. These operations are good enough to work on small datasets inside a database. However, in real-world scenarios, the bulk of the data comes from systems outside of the database. For example, different systems within the same company need to exchange data, and business analysts need to utilize data from external vendors for analytics. This data is usually sent in the form of files. In addition, once you finish your analytical tasks, you also need to share your results with internal teams or external customers. ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.