From the course: SQL Server 2008 Essential Training

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Database normalization

Database normalization - SQL Server Tutorial

From the course: SQL Server 2008 Essential Training

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Database normalization

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Database normalization is the process of taking your database design through a set of rules called normal forms. So that it conforms to relational database standards and you really want to do this, so that your database will contain a minimum of duplicate data or redundant data. It'll contain data that's easy to get to define to edit and maintain, and that you can perform operations even difficult ones on your database without creating garbage inside, without invalidating the state of it. It should be carried out for every database you design, and it's really not that hard, even though yes, when you first start reading about database normalization, you're likely to run into phrases like "your database won't be in third normal form until every non- prime attribute of R is non-transitively dependent (i.e. directly dependent) on every candidate key of R," but you don't have to get into all this language. You just have to understand these were a set of rules developed about 40 years ago…

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