UPDATE `wp_commentmeta` SET `meta_value` = replace(meta_value, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_comments` SET `comment_content` = replace(comment_content, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_options` SET `option_value` = replace(option_value, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_posts` SET `post_content` = replace(post_content, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_posts` SET `guid` = replace(guid, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_postmeta` SET `meta_value` = replace(meta_value, 'http://olddomain.com', 'http://newdomain.com');
UPDATE `wp_usermeta` SET `meta_value` = replace(meta_value, 'olddomain.com', 'newdomain.com');
UPDATE `wp_blogs` SET `domain` = replace(domain, 'olddomain.com', 'newdomain.com');
UPDATE `wp_site` SET `domain` = replace(domain, 'olddomain.com', 'newdomain.com');
UPDATE `wp_sitemeta` SET `meta_value` = replace(meta_value, 'http://olddomain.com', 'http://newdomain.com');