Operational data stage and data warehouse

Question

Explain the term operational data stage (ODS) and data warehouse?

Answer 1

A data ware house is defined as the decision support database for the organisational needs. It is non volatile, subject oriented, integrated, time variant collection of the data.

a) ODS or Operational Data Source refers to an integrated collection of the related information. It consists of the maximum 90 days information.

b) ODS is nothing but operational data store, which is the part of the transactional database. This db keeps the integrated data from different db and enables common operations across the organisation. For example: banking transaction.

c) In simple terms, ODS is the dynamic data.