February 2018
Intermediate to advanced
960 pages
22h 7m
English
book
SQL Queries for Mere Mortals: A Hands-On Guide to Data Manipulation in SQL, 4th Edition
by John L. Viescas
Content preview from SQL Queries for Mere Mortals: A Hands-On Guide to Data Manipulation in SQL, 4th Edition
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18“NOT” and “AND” Problems
“For every complex problem, there’s an answer that is clear, simple, and wrong.”
—H. L. MENCKEN
Topics Covered in This Chapter
At this point (especially if you’ve been a good student and have worked through all the sample statements and problems), you should be very comfortable with the basics of the SQL database language. Now, in the words of a famous Louisiana chef, it’s time to “kick it up a notch.” In this chapter, I’m going to walk you through more complex problems to find out when something “is not” and when something “is” under multiple conditions. In Chapter 19, “Condition ...
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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.