What is the difference between operational data stage (ODS) and data warehouse?

What is the difference between operational data stage (ODS) and data warehouse?

Data warehouse

- It is a decision support database system for the purpose of organizational needs.
-It is non volatile, integrated and time variant collection of data

Operational Data Source

- It is an integrated collection of information.

-It can contain 90 days of information at maximum.

-ODS supports dynamic data.