1NF, 2NF, 3NF, BCNF, 4F, 5NF, 6NF

4 types of normal form, 1NF,2NF,3NF or BCNF(or 3.5NF)

Mainly DBMS contain 4 types of normal forms INF,2NF,3NF ,BCNF

1NF, 2NF, 3NF and BCNF

http://www.studytonight.com/dbms/database-normalization.php