MySQL
From Wikicliki
Alter collation of wordpress tables to utf8
ALTER TABLE `wp_comments` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_links` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_options` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_postmeta` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_posts` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_terms` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_term_relationships` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_term_taxonomy` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_usermeta` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ; ALTER TABLE `wp_users` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ;
the default is latin_swedish cos mysql is made in sweden!
NEW ADDITION - i think this one is new category added in new WP?
ALTER TABLE wp_commentmeta DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ;