What are the different levels of normalization in databases?
An example of an AI chatbot conversation about normalization levels in databases.
What are the different levels of normalization in databases?
Normalization in databases is a process to organize data to reduce redundancy. The main levels are 1NF, 2NF, 3NF, BCNF, and 4NF.
Can you explain the first normal form (1NF)?
1NF requires that all columns in a table contain atomic values, meaning each value must be indivisible.
What about the second normal form (2NF)?
2NF builds on 1NF by ensuring that all non-key attributes are fully functionally dependent on the primary key.
How does the third normal form (3NF) differ from 2NF?
3NF requires that all attributes are not only dependent on the primary key but also non-transitively dependent, eliminating any indirect dependencies.
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