April 2026
Beginner
493 pages
23h 2m
English
Content preview from SQL
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4.6 Summary
In this chapter, we learned about DDL and how to build and execute corresponding SQL statements.
At this point, we know how to create, modify, and delete databases, schemas, tables, constraints, and views. All of this should come in handy in your database adventures!
We’ve also discussed the risks of changing or deleting existing database components. Client applications relying on those components may fail if you don’t proceed with caution.
Now that we can create database components, it’s time to create table entries by using DML, which is the subject of our next chapter.
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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.