Keys
How a key is made from a name, and why it never changes once created.
Keys
A key is made from the name: lower case, Turkish and accented letters folded, other characters turned into _ (“Eğitim Kaydı” → egitim_kaydi). It is shown under the name before you create, and you may change it there. Once created it never changes, because fields, relations and expressions refer to it; the page shows it as fixed. A relation's key is offered from its two entities and the kind of link.