Data warehousing nptel

  • What is data warehouse in DWDM?

    A data warehouse (DW) is a digital storage system that connects and harmonizes large amounts of data from many different sources..

  • Why is data warehousing important?

    Data warehousing improves the speed and efficiency of accessing different data sets and makes it easier for corporate decision-makers to derive insights that will guide the business and marketing strategies that set them apart from their competitors.
    Improve their bottom line..

  • A data warehouse stores current and historical data for the entire business and feeds BI and analytics.
    Data warehouses use a database server to pull in data from an organisation's databases and have additional functionalities for data modelling, data lifecycle management, data source integration, and more.

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