hi again, a newbie to Tamino here…umm…I need an attribute to be unique in all records/instances…but I cannot seem to find a way to do this in the Schema Editor…I need help.

For example.

I have an element with attribues : nickname, *** and age. I need the nickname to be unique. meaning, i dont want the same nickname occuring in each record.

your help will be greatly appreciated. thank you.

Sorry, currently there is no way to express this constraint in Tamino. Development is currently implementing such a constraint.