Computer Sciene of Udayana State University

April 26, 2009

First Normal Form (1NF)

Filed under: Computer Science — ignaga @ 2:16 AM
  • A relation in which intersection of each row and column contains one and only one value.

It does not allow non-atomic attributes.

  • An unnormalized relation must be converted to a 1NF relation

First identify a primary key, then

place repeating data along with copy of the original key attribute(s) into a separate relation.

Making relation to satisfy 4NF

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