WordPress 技巧：如何修改 WordPress 数据库前缀

在 wp-config.php 修改数据库前缀

$table_prefix  = 'wpjam_';

修改数据表名字

RENAME table `wp_commentmeta` TO `wpjam_commentmeta`;
RENAME table `wp_comments` TO `wpjam_comments`;
RENAME table `wp_links` TO `wpjam_links`;
RENAME table `wp_options` TO `wpjam_options`;
RENAME table `wp_postmeta` TO `wpjam_postmeta`;
RENAME table `wp_posts` TO `wpjam_posts`;
RENAME table `wp_terms` TO `wpjam_terms`;
RENAME table `wp_term_relationships` TO `wpjam_term_relationships`;
RENAME table `wp_term_taxonomy` TO `wpjam_term_taxonomy`;
RENAME table `wp_usermeta` TO `wpjam_usermeta`;
RENAME table `wp_users` TO `wpjam_users`;

修改 Options 表中的数据

SELECT REPLACE(option_name, 'wp_', 'wpjam_') FROM wpjam_options;

修改 UserMeta 表中的数据

SELECT REPLACE(meta_key, 'wp_', 'wpjam_') FROM wpjam_usermeta;