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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15.3. Database-Level Shared Memory
When you issue the activate database command or connect to a database for the first time, DB2 automatically allocates the database-level shared memory (see Figure 15.3). This memory caches the object pages that are being manipulated to control concurrency on the rows of data, ensure transactional integrity for all operations on the database, and so on.
The components of database shared memory include:
The database buffer pool(s)
The lock list
The shared sort area (if intra-partition parallelism is enabled)
The database heap, which also includes
- The log buffer ...
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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.