Data warehousing concepts javatpoint

  • 5 examples of data warehouse

    Data warehouse modeling is the process of designing the schemas of the detailed and summarized information of the data warehouse.
    The goal of data warehouse modeling is to develop a schema describing the reality, or at least a part of the fact, which the data warehouse is needed to support..

  • 5 examples of data warehouse

    When data warehouses first came onto the scene in the late 1980s, their purpose was to help data flow from operational systems into decision-support systems (DSSs).
    These early data warehouses required an enormous amount of redundancy.
    Most organizations had multiple DSS environments that served their various users..

  • What are the basic concepts of data warehouse modeling?

    Data warehouse modeling is the process of designing the schemas of the detailed and summarized information of the data warehouse.
    The goal of data warehouse modeling is to develop a schema describing the reality, or at least a part of the fact, which the data warehouse is needed to support..

A Data Warehouse (DW) is a relational database that is designed for query and analysis rather than transaction processing. It includes historical data derived  Data Warehouse ArchitectureData Warehouse ComponentsETL Process

What is the scope of a data warehouse (DWH)?

Extending Scope: In this phase, the scope of DWH is extended to address a new set of business requirements

This involves the loading of additional data sources into the DWH i

e the introduction of new data marts

Requirement Evolution: This is the last step of the delivery process of a data warehouse


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