Question - What is the difference between a data warehouse and a data mart?
Answer -
A data warehouse is a set of data isolated from operational systems, so it is basically a way from the database itself; it is a view of the database. This helps an organization deal with its decision-making process. The Data Mart is a subset of a data warehouse that is geared to a particular business line. Data mods provide the stock of condensed data collected in the organization for analysis on a particular field or entity. So this is basically stating that the data warehouse contains a whole variety of information while a data mart is just a subset of that information based on a particular business line or model.