Normalization is the process of organizing columns into tables within a relational database in such a way as to minimize redundancy and avoid insertion, update and deletion anomalies.

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IIS access log to SQL normalization

I am looking for insert IIS 6.0 access log ( 5 servers, and over 400MB daily ) to SQL database. What scares me is the size. There is a lot of information you are duplicating (i.e. site name, url, ...
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Multilingual Dictionary Database question

Let's say someone is coding a multilingual dictionary in PHP, and he wants to let people submit both words and definitions in English and Spanish, but wants to track it so they can be filtered. ...
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Do higher normalized forms always meet the criteria of lower ones?

For example, a database that is 3NF is always 1NF and 2NF; does this hold for 4, 5, and 6?