Database is no longer searchable by item URL.
The old Database format allowed you to share an item by URL rather than the generic entire Database.
For example, members want an item from the Database: all the shoe shops in our neighborhood. Your search produces the results. You can copy the results URL , share it with the members in a post and when they click on it, it takes them to that exact collection of data. Now in the new Database version, all such URLs go to /point to the landing page of the Database only.