What to do when I want to use database constraints but only mark as deleted instead of deleting?

Question

I am working in a project where database items are not deleted, but only marked as deleted. Something like this:

id   name     deleted
---  -------  --------         


        

Answer 1

Add a random hash after the unique name. Something that is easily reversible. Possibly separate with an underscore or some other character.

Edit after comment: You could simply add underscore and the current timestamp.