How to apply the first normal form
The invoice data with a column that contains repeating values
The invoice data with repeating columns
The invoice data in first normal form
Description
- For a table to be in first normal form, its columns must not contain repeating values. Instead, each column must contain a single, scalar value. In addition, the table must not contain repeating columns that represent a set of values.
- A table in first normal form often has repeating values in its rows. This can be resolved by applying the second normal form.
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