October 2002
Beginner
864 pages
18h 41m
English
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Tips for Building Complex Queries
The following are tips that may help you out when you come across problems requiring complex queries:
If a request for a query comes to you in the form of hard copy, discreetly place it on your coworker's desk. (Just kidding!)
Understand what the requester is asking for.
Identify the tables that should be used to resolve the query.
Study the relationships between your tables. Know what data to expect from queries.
Describe the tables to determine what the exact column names are. You should show only pertinent information on the report.
Sometimes it is helpful to construct a rough draft of the query on paper before you attempt to type it into a file and run it.
Code one piece at a time. If the report is complicated, ...
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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.