1NF—a table that qualifies as a relation is in 1NF.
2NF—a relation is in 2NF if all of its nonkey attributes are dependent on all of the primary keys.
3NF—a relation is in 3NF if it is in 2NF and has no determinants except the primary key.
Boyce-Codd Normal Form (BCNF)—a relation is in BCNF if every determinant is a candidate key.