UPDATE wp_options SET option_value = replace(option_value, 'old', 'new') WHERE option_name = 'home' OR option_name = 'siteurl';
 UPDATE wp_posts SET guid = replace(guid, 'old','new');
 UPDATE wp_posts SET post_content = replace(post_content, 'old', 'new');
 UPDATE wp_links SET link_url = replace(link_url, 'old','new');
 UPDATE wp_options SET option_value = replace(option_value, 'old','new');
 UPDATE wp_postmeta SET meta_value = replace(meta_value, 'old','new');