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What is 3rd normal form?

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ADR1985

Technical User
Apr 28, 2003
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Could someone please give me a definition of 3rd normal form and explain how I should put my database into it. Cheers!!
 
ADR1985,
Oversimplified:
First Normal Form-No repeating groups
Second Normal Form-No repeating groups AND any field that is not a key field is is dependent on the primary key
Third Normal Form-No repeating groups AND any field that is not a key field is is dependent on the primary key AND the value in a field (not a primary key field) is determined by the value in another field (again, not a primary key field).

How to do it:
1. Read up on relational database design.
2. Look for repeating values. Repeating data usually means you need to create an additional table.
HTH, Montrose Learn what you can and share what you know.
 
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