Data warehousing for dummies pdf

  • What is data warehouse for beginners?

    A data warehouse on the other hand is a large centralized repository of data that contains information from many sources within an organization.
    The collated data is used to guide business decisions through analysis, reporting, and data mining tools..

Nov 14, 2019Welcome to the second edition of Cloud Data Warehousing For. Dummies, where you discover how your organization can tap the power of massive 

How do you design a data warehouse?

Most data warehouses use a dimensional model

The model of your source data and the requirements of your users help you design the data warehouse schema

You can sometimes get the source model from your company's enterprise data model and reverse-engineer the logical data model for the data warehouse from this

Why is a data warehouse so expensive?

Conventional data warehouses are prone to system slowdowns and crashes as users and processes compete for limited resources

These systems tightly connect storage and compute onto a single computer cluster (a group of computers), making it costly to increase one without increasing the other


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