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  1. Jul 23, 2024 · Learn the basics of normalization, a process of minimizing redundancy in database tables. Understand the different levels of normal forms, from 1NF to 5NF, and their advantages and examples.

    • 20 min
  2. Learn what normalization is and why it is important for database design. Understand the different normal forms (1NF, 2NF, 3NF, BCNF, 4NF, 5NF) and their properties and advantages.

    • First Normal Form (1NF) For a table to be in the First Normal Form, it should follow the following 4 rules: It should only have single(atomic) valued attributes/columns.
    • Second Normal Form (2NF) For a table to be in the Second Normal Form, It should be in the First Normal form. And, it should not have Partial Dependency.
    • Third Normal Form (3NF) A table is said to be in the Third Normal Form when, It satisfies the First Normal Form and the Second Normal form. And, it doesn't have Transitive Dependency.
    • Boyce-Codd Normal Form (BCNF) Boyce and Codd Normal Form is a higher version of the Third Normal Form. This form deals with a certain type of anomaly that is not handled by 3NF.
    • Database Normalization With Examples. Database Normalization Example can be easily understood with the help of a case study. Assume, a video library maintains a database of movies rented out.
    • BCNF (Boyce-Codd Normal Form)
    • 4NF (Fourth Normal Form) Rules. If no database table instance contains two or more, independent and multivalued data describing the relevant entity, then it is in 4 Normal Form.
    • 5NF (Fifth Normal Form) Rules. A table is in 5 Normal Form only if it is in 4NF and it cannot be decomposed into any number of smaller tables without loss of data.
  3. Dec 21, 2022 · Learn what database normalization is and why it is important for relational databases. See how to apply 1NF, 2NF, and 3NF to organize data in tables and avoid redundancy and dependency.

  4. Learn how to design a relational database schema using normalization, a technique that reduces data redundancy and conflicts. See examples of 1NF, 2NF, 3NF, and BCNF with explanations and diagrams.

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  6. Apr 13, 2020 · Learn about the different normal forms in database normalization, from unnormalized form to sixth normal form, with examples and definitions. Find out how to avoid data redundancy and ensure data integrity with normal forms.

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