June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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Database and Result Set Metadata
“Meta-anything” is a higher or second-order version of the anything. Metadata is data about data. The classic example of metadata is file and directory information on your disk drive. You don't directly put it there, but you need it to keep track of your real data, and it is maintained by the system on your behalf. Databases have a large amount of metadata describing their particular capabilities and configuration.
The database metadata is going to be different for each database, and JDBC lets you get hold of it through the java.sql.DatabaseMetaData interface. You get an instance of the Metadata class by invoking a method of Connection. There you will find 100 or so fields and methods that you can use to ...
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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.