September 2014
Intermediate to advanced
384 pages
9h 28m
English
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The diagnostics area
The diagnostics area consists of two subareas: the statement information and the condition information.
The statement information contains two values:
NUMBER: This is the number of conditions stored in the condition area.ROW_COUNT: This is the number of rows modified by the statement it refers to. The same value is returned by theROW_COUNT()SQL function and by themysql_affected_rows()API function.
The diagnostics area is populated and emptied by following the exact rules. Knowing these rules is very important to debug single statements without falling for some common pitfalls, and it is more important to debug the stored programs.
Whenever a statement generates at least one condition (notes, warnings, or errors), the diagnostics ...
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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.