January 2005
Beginner to intermediate
928 pages
22h 14m
English
book
Understanding DB2®: Learning Visually with Examples
by Raul F. Chong, Clara Liu, Sylvia F. Qi, Dwaine R. Snow
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11.7. Techniques to Avoid Locking
It is good to know how to diagnose locking problems, but it is even better to know how to prevent them. Avoiding locking problems requires a good application design. The following is a list of items you should consider when developing your applications. For a detailed explanation of these and other techniques, refer to the DB2 UDB Administration Guide.
Choose the appropriate isolation level: UR, CS, RS, or RR. As discussed earlier, UR allows for the most concurrency and the least number of locks required, while RR allows for the least concurrency and the most number of locks required. For example, if your application is used for estimation purposes and the exact value of columns is not needed, isolation UR should ...
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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.