1NF: Atomicity (1 field = 1 value)2NF: No Partial Dependencys (more then 1 candidate key)
3NF: It can't be directly related to something within the same table.
Example: Province under the persons table
What is the main rule of first normal form? second form ? third form?
1NF: Atomicity (1 field = 1 value)2NF: No Partial Dependencys (more then 1 candidate key)
3NF: It can't be directly related to something within the same table.
Example: Province under the persons table
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