A data mart is a subset of a larger data warehouse that is designed to serve a specific business unit or department.

• Contains a subset of data from a larger data warehouse

• Designed to serve a specific b...read more

Data Mart:

 It is the subject of data warehouse

 It is specific subject oriented data which is designed for answering the specific questions from specific user.

Data mark is noting but subset of data warehouse. having 2 differnt data marts independent and depenadent.