March 2012
Intermediate to advanced
442 pages
9h 31m
English
Content preview from IBM DB2 9.7 Advanced Application Developer CookbookBecome 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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Creating a sequence object
Many applications require sequential numbers to be generated for key values such as the item number, invoices, and so on. Sequences offer a very good solution to such applications. Sequences are database objects that allow a user to generate key values automatically. Because these values are generated within the database, there is no chance of the duplicate values being present. DB2 keeps track of the values being generated and knows the next values, so even in the case of a crash or a failure, the new values are correct. It also gives better performance as compared to other approaches of generating the values manually. In this recipe, we will see how sequences can be created and used, and we will also see how it is ...
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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.