Data warehousing concepts ppt

  • Data warehouse is the collection of historical data from different operations in an enterprise. 2.
    Big data is a technology to store and manage large amount of data.
    Data warehouse is an architecture used to organize the data.

What are the different concepts revolving around data warehousing?

Data Warehousing Concepts Now let’s understand the various concepts revolving around Data Warehousing like: OLAP, Dimensions, Facts & Schemas 7

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What is the difference between data mart and data warehouse?

Data warehouse v/s Data Mart • Data mart - A logical subset of the complete data warehouse

• A data mart is a complete “pie-wedge” of the overall data warehouse pie

• A data warehouse is made up of the union of all its data marts

• A data warehouse is fed from the staging area


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