April 2026
Intermediate
1009 pages
34h 15m
English
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17 SQL
No databases without SQL: That was true for many years. And even if there are now databases without SQL, most systems rely on this query language. That’s reason enough for a brief introduction!
In the beginning ... was IBM. In the 1970s, IBM developed the Structured English Query Language (SEQUEL), a query language that made it possible to communicate with a database "in English." This became SQL, which has since become a standard. The terminology is a constant source of confusion. Many programmers, especially older ones, still pronounce SQL as sequel, probably because they were still familiar with the old standard. Others are of the opinion that SQL stands for Structured Query Language—but there is no mention of this in the standard. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.