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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16.11. Using Visual Explain to Examine Access Plans
Once the EXPLAIN data has been stored in the explain tables, it can be queried or displayed using Visual Explain or other explain tools. This section describes how to use the Visual Explain tool to review and analyze an access plan.
Visual Explain is a graphical utility that gives the database administrator or application developer the ability to examine the access plan determined by the optimizer. Visual Explain can only be used with access plans explained using the snapshot option.
You can use Visual Explain to analyze previously generated explain snapshots or to gather explain data and explain dynamic SQL statements. If the explain tables have not been created when you start Visual Explain, ...
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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.