October 2002
Beginner
864 pages
18h 41m
English
Content preview from Sams Teach Yourself SQL in 21 Days, Fourth Edition
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Bonus Day 2. Creating Complex SQL Queries
Today, we will discuss, mostly by example, complex queries. Complex queries are an everyday part of life for the SQL programmer. Many of today's examples may prove to be useful to you as many are real examples that we have actually used. By the end of the day, you should understand
How SQL commands interact with each other
How functions, expressions, and operators can be used together
How to use complex arithmetic combinations in the SELECT clause
How to formulate complex queries on your own
Note
We have used Personal Oracle for today's examples. Although most of the examples are ANSI standard syntax, take note of the different options in your implementation of SQL if they differ from Oracle.
MySQL examples ...
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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.