June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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Result Set of a SELECT Query
We've seen informally in previous examples how the results of a SELECT statement are returned to you. The results of a query come back as rows-in-a-table, held in an object called a result set.
Contents of a result set
The result set contains zero or more rows which are retrieved and examined individually using something called a cursor. Just as a GUI cursor marks your position on the screen, a database cursor indicates the row of the result set that you are currently looking at. A cursor is usually implemented as an unsigned integer that holds the offset into the file containing your result set. It has enough knowledge to move forward row by row through the result set.
The cursor
Database management ...
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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.