3. First Normal Form
• There should not be any repeating columns
• Eliminate repeating groups in individual
tables.
• Create a separate table for each set of related
data.
• Identify each set of related data with a
primary key.
4. Second Normal Form
• Three should not be any functional
dependency between key column and non key
column
• Create separate tables for sets of values that
apply to multiple records.
• Relate these tables with a foreign key.
5. Third Normal Form
• There should not be any functional
dependency between two non key columns
• Eliminate fields that do not depend on the
key.