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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DB2 System Catalog Tables
Each DB2 database has a set of tables called the system catalog tables. DB2 creates these tables when a database is created. They contain definitions of database objects (for example, tables, views, indexes, and packages), security information about the type of access that users have to these objects, and statistical information about the tables in the database.
DB2 automatically updates these tables when SQL Data Definition Language (DDL) statements are issued. For example, when you create a table, DB2 enters the definition of the table into the SYSIBM.SYSTABLES table. When you create an index, DB2 enters the index definition into the SYSIBM.SYSINDEXES table. DB2 uses these catalog tables to keep track of what exists ...
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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.