Normalization in plain English

Posted by Yada on Stack Overflow See other posts from Stack Overflow or by Yada
Published on 2010-02-25T05:26:41Z Indexed on 2010/04/23 17:33 UTC
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I sort of understand the concept of database normalization but always have a hard time explaining it in plain English especially for a job interview. I have read the wikipedia post, but still find it hard to explain the concept to none developers. "Design a database in a way not to get duplicated data" is the first thing that comes to mind.

Does anyone was a nice way to explain the concept of database normalization in plain English. And what are some nice examples to show the differences between first, second and third normal forms.

Say you go to a job interview and the person asks: Explain the concept of normalization and how would go about designing a normalized database.

What key points are the interviewer looking for?

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