A DWH is a
1. Subject Oriented i.e. Has the power to mould the transactional data around a particular subject.If we want to answer questions around the sales of a particular product, the DWH would be around the Subject-sales.etc.
2. Integrated i.e. Integrates data from various sources and keeps in form of dimensional model.
3. Non-volatile i.e. -Data once entered in DWH does not change.
4. Time variant - DWH maintains historical data.
collection of data.
1. Subject Oriented i.e. Has the power to mould the transactional data around a particular subject.If we want to answer questions around the sales of a particular product, the DWH would be around the Subject-sales.etc.
2. Integrated i.e. Integrates data from various sources and keeps in form of dimensional model.
3. Non-volatile i.e. -Data once entered in DWH does not change.
4. Time variant - DWH maintains historical data.
collection of data.
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