Data Sources - Data warehousing<

Data Sources.

Data source is where the data comes from in data warehousing. The data collected from various sources and is cleaned. The data source can be internal or external. Efficient Analysis and cleansing of source data is the key success to data warehousing.
Fact Tables - Data warehousing
Data in a warehouse comes from the transactions. Fact table in a data warehouse consists of facts and/or measures.....
Database roles - Data warehousing
Database level roles are used to manage the security of the database. The role can be either fixed or flexible.....
Concepts and capabilities of OLAP - Data warehousing
Online Analytical Processing is a powerful and popular data analytical method. Complex data structures are explored and provide the necessary information......
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