What is De-normalization?
De-normalization
is the process of attempting to optimize the performance of a database by
adding redundant data. It is sometimes necessary because current DBMSs
implement the relational model poorly. A true relational DBMS would allow for a
fully normalized database at the logical level, while providing physical
storage of data that is tuned for high performance. De-normalization is a
technique to move from higher to lower normal forms of database modeling in
order to speed up database access.
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