A data warehouse is a logical collection of information-gathered from many different operational databases-that supports business analysis activities and decision making tasks.
The purpose is to aggregate information throughout an organizational into a single repository in a such way that employees can make decisions and undertake business analysis activities.
I can understand about data warehouse, data marts and data mining.
Multidimensional database is include data warehouse and data marts.
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I also know that information cleansing or scrubbing is a process that weeds out and fixes or discards inconsistent, incorrect or incomplete information.
In addition, business intelligence refers to applications and technologies that are used to gather, provide access to, and analyse data and information to support decision-making effort.
I also know three principal BI enablers are technology, people and corporate culture.
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