March 2001
Intermediate to advanced
640 pages
14h 9m
English
book
Sams Teach Yourself Transact-SQL in 21 Days, Second Edition
by Lowell Mauer, David Solomon, Bennett McEwan
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Managing Special Database Actions with Triggers
In addition to using triggers to help you enforce the business rules within your database, you can also use them to perform tasks that would be too complicated without them. In this next section, you will learn about three different tasks that you might need to use in any application you create. The first two are important if you will be tracking any type of summary or derived values within the database itself. The second task is more of an administrative task, but creating an audit trail is important if you need to know where, when, and maybe who performed each action against the database. Some of the database actions will use the ability to cascade or nest one or more triggers. This enables you ...
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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.