WP SQL – Close trackbacks on all posts at once

Do you use trackbacks and pings? Many people seems to find them useless. In order to get rid of them, you can close trackbacks post by post, but this will consume a lot of time. Or, of course, you can use a good old SQL query, as shown below:

UPDATE wp_posts SET ping_status = 'closed';

→ Source: http://www.wprecipes.com/wordpress-tip-close-trackbacks-on-all-posts-at-once