Why we Maintain Data ?

Why we use Database ?

Ans: Database is a storage space for everything. We can store the data in tables. In organizations, generally for records maintenance. We can store the historical data as well as present data. If the data size is increased, the past data may lost .We can maintain the transaction data in data base.

Why we use Datawarehouse?

Ans: Data ware house is also a storage space like database. The data ware house is a huge database than a normal database. Database is a part of data ware house. We can analyse the data from the data ware house easily because we have a huge data i.e., Historical data. Based on some conditions the data will be loaded from database to data ware house. Generation of a report is very easy from data ware house for data analysis.

Why we use Reporting?

Ans: Reporting is a process of generation of reports. In real-time,the higher management need to know the present status of the organization. So reports are very useful to analyse the data and for decision making or forecasting .