Normalization: is a gradual process of removing redundancies of attributes in a data structure. The condition of the data at completion of each step is described as a "normal form." Normalization is usually considered to be a good way to design a database, however it involves high CPU time to process a task or query.
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Denormalization: is the reverse of normalization wherein the emphasis is on increasing redundancies. This is done for performance enhancement and reduced query time. |
