Question

How do you handle the violation of the first normal form?

Answer 1

To handle the violation of the first normal form, you can identify the cause, remove duplication, and split columns with multiple values into separate tables.

Step-by-step explanation:

In database management, the first normal form (1NF) is violated when a table contains duplicate rows or when a column contains multiple values. To handle the violation of the first normal form, you can perform the following steps:

1. Identify the table with the violation and determine the cause.
2. Remove duplication by creating separate tables for the repeating groups of data.
3. Split the columns that store multiple values into separate tables.

For example, if you have a table for students and a student can have multiple phone numbers, you can create a separate table for phone numbers and link it to the student table using a foreign key.