What Is The Main Difference Between Schema In Rdbms And
Schemas In Data warehouse?
Ch KashifEnlightened
Power BI
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What Is The Main Difference Between Schema In Rdbms And
Schemas In Data warehouse?
Ch Kashif
RDBMS Schema
* Used for OLTP systems
* Traditional and old schema
* Normalized
* Difficult to understand and navigate
* Cannot solve extract and complex problems
* Poorly modelled
DWH Schema
* Used for OLAP systems
* New generation schema
* De Normalized
* Easy to understand and navigate
* Extract and complex problems can be easily solved
* Very good model.