November 2004
Intermediate to advanced
576 pages
11h 49m
English
book
DB2® SQL PL: Essential Guide for DB2® UDB on Linux™, UNIX®, Windows®, i5/OS™, and z/OS®, Second Edition
by Zamil Janmohamed, Clara Liu, Drew Bradstock, Raul Chong, Michael Gao, Fraser McArthur, Paul Yip
Content preview from DB2® SQL PL: Essential Guide for DB2® UDB on Linux™, UNIX®, Windows®, i5/OS™, and z/OS®, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 9. User-Defined Functions and Triggers
In this chapter, you will learn
What User-Defined Functions (UDFs) are
How UDFs can be used to simplify your application development efforts
What triggers are
How triggers can be used to transparently and consistently enforce application logic in the database
UDFs and triggers are database objects that help reduce the complexity of database application development.
On LUW, although the language syntax for SQL PL is consistent for all types of objects from an application development perspective, the language implementation to support SQL PL for stored procedures is different from that for UDFs and triggers. SQL PL support in UDFs and triggers is a subset of that in stored procedures. It is referred to as ...
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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.