August 2010
Intermediate to advanced
526 pages
23h 39m
English
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Name
upper() — Convert all ASCII characters to uppercase
Common Usage
upper( text )Description
The upper() function returns a copy of
with all of the letter characters converted to
uppercase. The built-in implementation of this function only
works with ASCII characters (those that have a value of less
than 128).text
The ICU extension provides a Unicode
aware implementation of upper().
See Also
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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.