August 2010
Intermediate to advanced
526 pages
23h 39m
English
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Name
hex() — Dump BLOB as hexadecimal
Common Usage
hex( data )Description
The hex() function converts a BLOB value into a
hexadecimal text representation. The parameter data is assumed to be a BLOB. If
it is not a BLOB, it will be converted into one. The returned
text value will contain two hexadecimal characters for each byte
in the BLOB.
Be careful about using hex() with large BLOBs. The
UTF-8 text representation is twice as big as the original BLOB
value, and the UTF-16 representation is four times as
large.
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.