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I am designing a database and I reached (as per my little knowledge) the Third Normal Form (3NF)
Some of my colleagues told me about a Sixth Normal Form!! I was wondering how to know if the level of normalization of database is enough.
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Third Normal Form (3NF) is considered adequate for normal relational database design because most of the 3NF tables are free of insertion, update, and deletion anomalies.
Each rule is called a "normal form." If the first rule is observed, the database is said to be in "first normal form." If the first three rules are observed, the database is considered to be in "third normal form." Although other levels of normalization are possible, third normal form is considered the highest level ...
Which normal form is considered adequate for normal relational database design? Explanation: 3NF is sufficient because because most of the 3NF tables are free of insertion, update, and deletion anomalies. Moreover, 3NF always ensures functional dependency preserving and lossless.
In my experience, it's pretty rare to hear anyone talk about going beyond 3NF for real-world production applications. That should be sufficient for nearly all cases.
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Normally 3NF good enough, but it really depends on your requirements. Be practical in your design.
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