- Version
- Download 7
- File Size 1.13 MB
- File Count 1
- Create Date March 27, 2023
- Last Updated March 27, 2023
What is Data Warehouse?
A data warehouse is a repository of information collected from multiple sources, stored under a unified schema, and that usually resides at a single site.
A data warehouse is a semantically consistent data store that serves as a physical implementation of a decision support data model and stores the
information on which an enterprise need to make strategic decisions.
Data warehouses provide on‐line analytical processing (OLAP) tools for the interactive analysis of multidimensional data of varied granularities, which
facilitate effective data generalization and data mining
Many other data mining functions, such as association, classification, prediction, and clustering, can be integrated with OLAP operations to enhance
interactive mining of knowledge at multiple levels of abstraction