Differnces between a RDBMS schema and a data warehouse schema

RDBMS Schema
* Main Purpose: Record
* Used for OLTP systems
* Highly Normalized
* Difficult to understand and navigate
* Difficult to extract and solve complex problems

DWH Schema
* Main Purpose: Respond
* Used for OLAP systems
* De-normalized
* Easy to understand and navigate
* Relatively easier in extracting the data and solving complex problems