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Re: Cannot write utf8 data into a utf8 column - SOLVED [message #170753 is a reply to message #170752]

Fri, 19 November 2010 17:03

Michael Fesser
Messages: 215
Registered: September 2010

Karma:

Senior Member

.oO(Tony Marston)

> "Peter H. Coffin" <hellsop(at)ninehells(dot)com> wrote in message
> news:slrniebqgp(dot)1g0(dot)hellsop(at)abyss(dot)ninehells(dot)com...
>>
>> If it were the SAME, it would work the same. MySQL gives this error when
>> there's invalid UTF-8 byte sequences, like a continuation byte without
>> starting byte, or a starting byte that is not followed by a continuation
>> byte... Find out what the hex for what you're trying to stick in
>> message_text and I bet it won't be what it should be.
>
> The error message was reporting a problem with the hex value \xA0 (decimal
> 160) which represents ' ' or the non-breaking space.

Yes, but 0xA0 is no correct UTF-8 sequence. Only the 128 ASCII chars
(0x00-0x7F) can be written as single-byte sequences. All other chars
require 2 or more bytes.

> I discovered that
> instead of replacing ' ' with chr(160) that I needed to replace it with
> chr(194).chr(160). I don't now why the chr(194) is necessary, but it solves
> my problem.

0xC2 0xA0 is the correct encoding of the non-breaking space as UTF-8:

http://www.fileformat.info/info/unicode/char/a0/index.htm

If you do such replacements in your scripts, it might make sense to
ensure that all your scripts are stored in UTF-8 as well. Then you don't
have to manually create the correct byte sequences.

Micha

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[Message index]

		Cannot write utf8 data into a utf8 column By: Tony Marston on Thu, 18 November 2010 16:54
		Re: Cannot write utf8 data into a utf8 column By: Peter H. Coffin on Fri, 19 November 2010 03:25
		Re: Cannot write utf8 data into a utf8 column - SOLVED By: Tony Marston on Fri, 19 November 2010 16:25
		Re: Cannot write utf8 data into a utf8 column - SOLVED By: Michael Fesser on Fri, 19 November 2010 17:03
		Re: Cannot write utf8 data into a utf8 column - SOLVED By: Thomas 'PointedEars' on Fri, 19 November 2010 22:48

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