What is Data Warehousing?
Data warehousing is the process of constructing and using a data warehouse. A data warehouse is constructed by integrating data from multiple heterogeneous sources that support analytical reporting, structured and/or ad hoc queries, and decision making. Data warehousing involves data cleaning, data integration, and data consolidations.
These are some important features of Data Warehousing:
- Subject Oriented
- Integrated
- Time Variant
- Non-volatile