title: Boyce-Codd normal form with circular functional dependencies
body: <p>In relational database design, For example, there is schema S(banker, bname, customer) and function dependencies (FDs)</p>
  
  <p>banker->bname
  customer,bname->banker</p>
  
  <p>Is schema S in BCNF? Or it should be:
  (banker, bname) and (customer, banker)</p>