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Sunday, 17 November 2013

Normalized and De-normalized in Data warehouse


By on 11:01:00



Normalized:

It is the process of effectively organize the data in to the database.

Eliminating redundant data storing the same data for more times.

Stores only related data into the database.

It is the process of structuring relational database schema such that most ambiguity is removed.

De – Normalized:

It is process to increase the database performance.

It involves adding redundant data to a normalized database to reduce certain types of problems with database queries that combine data from various tables into a single table.

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