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 Thu, 11 Mar 2010 03:19:24 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Haidong Ji http://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: Ипотпал http://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 Ji http://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: knb http://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 Ji http://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: Emre http://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 Ji http://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: SL http://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 Ji http://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?

]]> By: Bastiaan http://www.haidongji.com/2009/02/16/perl-script-to-convert-mysql-character-set-to-utf8/comment-page-1/#comment-17678 Bastiaan Tue, 17 Mar 2009 16:12:39 +0000 http://www.haidongji.com/?p=556#comment-17678 ok I did sort of the same but I do get after changing a TEXT field to BLOB than the data was to big?? while the data war almost nothing any tips where to look? corrupt unicode? ok I did sort of the same but I do get after changing a TEXT field to BLOB than the data was to big?? while the data war almost nothing

any tips where to look? corrupt unicode?

]]>