Getting only the most recent bookmark?

As far as I know it’s not possible to query the links directly, but there is definetly a link_updated field in the wp_links table, so you can use wpdb to interact with it and return the latest (modified) links.

There’s also a solution here.

EDIT : Updating a link doesn’t change link_updated, but here is a plugin that can solve that : Link Updated Plugin

Auttomatically update the link_updated field when adding or editing a
link, so you can use Links as a linklist.

EDIT 2 : If using the Links/Bookmarks functionality is too much of a hassle, as it seems it’s really not as flexible as posts, you could also create a custom post type or a post format for Bookmarks and work with that.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)