Hi,

in the database table k2_items there are the columns "ordering" and "featured_ordering" which contain Integer Values. What do these do? Is it only the ordering in the backend or also in the frontend?

Speaking of: Is there maybe a diagram of the K2 database tables?

Thank you!

Unfortunately I don't have a diagram I can provide at this moment.
However there are several tools that offer diagrams for mySQL db's.

The one column is for normal ordering. All items are appearing based on that value.
The other values is almost the same with one difference in the featured ordering, featured items will be displayed first followed by the rest of the items.