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Difference B/W Data Ware house and Data Mart

What is the difference between Data Mart and a data ware house
Data mart is a part of data mining which is a repository of data gathered from operational data and other sources ,http://www.sql-server-performance.com/ec_data_mining.asp which is another part of data warehouse. Satya SKJ
Microsoft SQL Server MVP
Writer, Contributing Editor & Moderator
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