Comparison of Relational and Dimensional Data Modeling

Relational | Dimensional Data Modeling:

Relational Data Modeling is used in OLTP systems which are transaction oriented and Dimensional Data Modeling is used in OLAP systems which are analytically based. In a data warehouse environment, staging area is designed on OLTP concepts, since data has to be normalized, cleansed and profiled before loaded into a data warehouse or data mart. In OLTP environment, lookups are stored as independent tables in detail whereas these independent tables are merged as a single dimension in an OLAP environment like data warehouse.

Relational vs Dimensional Data Modeling

[ultimatetables 12 /]

 

(Visited 53,593 times, 7 visits today)

One comment

Leave a Reply

Your email address will not be published. Required fields are marked *