Comments on: Perl script to convert MySQL character set to utf8 http://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/ 季庄新闻--Haidong Ji's Blog Wed, 04 Jan 2012 09:32:09 +0000 hourly 1 http://wordpress.org/?v=3.1.2 By: The Ji Village News » Having fun with MySQL and Python: converting MySQL character set to utf8http://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-18015 The Ji Village News » Having fun with MySQL and Python: converting MySQL character set to utf8 Thu, 16 Sep 2010 04:50:03 +0000 http://www.haidongji.com/?p=556#comment-18015 [...] get me started, I thought it would be fun to rewrite a Perl utility I wrote before with Python. That script converts MySQL character sets to utf8, a very common task for wikis and [...] [...] get me started, I thought it would be fun to rewrite a Perl utility I wrote before with Python. That script converts MySQL character sets to utf8, a very common task for wikis and [...]

]]> By: Haidong Jihttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17806 Haidong Ji Mon, 16 Nov 2009 01:04:04 +0000 http://www.haidongji.com/?p=556#comment-17806 Thanks Ипотпал. Glad you liked it. Cheers! Thanks Ипотпал. Glad you liked it. Cheers!

]]> By: Ипотпалhttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17805 Ипотпал Sun, 15 Nov 2009 19:55:06 +0000 http://www.haidongji.com/?p=556#comment-17805 this is a chunk of gold this is a chunk of gold

]]> By: Haidong Jihttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17767 Haidong Ji Thu, 17 Sep 2009 14:33:50 +0000 http://www.haidongji.com/?p=556#comment-17767 Thanks for pointing that out, knb. Thanks for pointing that out, knb.

]]> By: knbhttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17766 knb Thu, 17 Sep 2009 14:13:39 +0000 http://www.haidongji.com/?p=556#comment-17766 If there are foreign keys defined on in your table (column values referenced from other tables), conversion won't work for the referenced column. drop f-keys first, then recreate. can be tricky, though. If there are foreign keys defined on in your table (column values referenced from other tables), conversion won’t work for the referenced column. drop f-keys first, then recreate. can be tricky, though.

]]> By: Haidong Jihttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17761 Haidong Ji Tue, 01 Sep 2009 21:43:49 +0000 http://www.haidongji.com/?p=556#comment-17761 Hi Emre, Sorry, at this point I don't have enough time for a proper php code. You can try the manual approach documented here and see what happens: http://www.haidongji.com/2008/11/11/convert-character-set-to-utf8-in-mysql/ Hope it helps. Hi Emre,

Sorry, at this point I don’t have enough time for a proper php code.

You can try the manual approach documented here and see what happens:

http://www.haidongji.com/2008/11/11/convert-character-set-to-utf8-in-mysql/

Hope it helps.

]]> By: Emrehttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17760 Emre Tue, 01 Sep 2009 09:34:05 +0000 http://www.haidongji.com/?p=556#comment-17760 Hi, I tried it on my localhost(wamp, perl installed correctly.) but got "500 Internal Server Error" By the way can you convert it to php, it will be very useful. Hi,

I tried it on my localhost(wamp, perl installed correctly.) but got “500 Internal Server Error”

By the way can you convert it to php, it will be very useful.

]]> By: Haidong Jihttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17733 Haidong Ji Mon, 25 May 2009 04:20:28 +0000 http://www.haidongji.com/?p=556#comment-17733 Hmmm, not sure about that SL. I tried it again on my own machine and it worked. Hopefully you've fixed this problem. If not, send me the script and I can take a look. Hmmm, not sure about that SL.

I tried it again on my own machine and it worked. Hopefully you’ve fixed this problem. If not, send me the script and I can take a look.

]]> By: SLhttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17732 SL Thu, 21 May 2009 20:01:33 +0000 http://www.haidongji.com/?p=556#comment-17732 Hi, I'm getting this in my error log: malformed header from script. Bad header=ALTER TABLE wp_comments MODIFY: convert.pl (convert.pl being the name of the script) The only other change I made to the script other than changing the database info is that I changed "localhost" to the correct hostname, since I was getting an error on that too. Do you know what the new error means? Thanks! Hi, I’m getting this in my error log:

malformed header from script. Bad header=ALTER TABLE wp_comments MODIFY: convert.pl

(convert.pl being the name of the script)

The only other change I made to the script other than changing the database info is that I changed “localhost” to the correct hostname, since I was getting an error on that too.

Do you know what the new error means?

Thanks!

]]> By: Haidong Jihttp://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17680 Haidong Ji Wed, 18 Mar 2009 03:46:06 +0000 http://www.haidongji.com/?p=556#comment-17680 Hi Bastiaan, In your case, I doubt it is a matter of corrupt unicode. When the character set is UTF8, MySQL uses 3 bytes to store one character, instead of 1 when the character is Latin1. I suppose that is why the size grown after the conversion? Hi Bastiaan,

In your case, I doubt it is a matter of corrupt unicode. When the character set is UTF8, MySQL uses 3 bytes to store one character, instead of 1 when the character is Latin1. I suppose that is why the size grown after the conversion?

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