1NF: First Normalization says that each column should contain one value and each
row should contain same number of columns.
Implement primary key to identify the records uniquely.
2NF: Second Normalization says move redundent data to separate table.
Use foreignkey contraint between two tables.
3NF: Third Normalization says it should be in 1NF and 2NF to be a 3NF.
Table should not contain columns which are not fully dependent on primary key.
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