title: can you add [Key] on a keyless entity?
body: <p>I am trying Entity Framework Core, so i stumbled upon a keyless table that i am trying to create a CRUD operation, since it is keyless, create, update and delete is impossible. So I thought, if I specify a key (there is a unique column that can be a primary key) this will fix the keyless problem in the EFCore. My question is, is this possible and if it is, how will i do this?</p>
  <p>hope you guys can help me</p>
  <p>PS altering the table is not allowed, so i need this workaround...</p>