Define Data Warehouse

Effective data governance is at the heart of managing the data used in operational systems and the bi and analytics applications fed by data warehouses data marts and data lakes.

Define data warehouse. A database is a transactional system that is set to monitor and update real time data. The annual report uses information from the data warehouse. The other benefits of a data warehouse are the ability to analyze data from multiple sources and to negotiate differences in storage schema using the etl process. A data warehouse is employed to do the analytic work leaving the transactional database free to focus on transactions.

A data warehouse is typically used to connect and analyze business data from heterogeneous sources. They store current and historical data in one single place that are used for creating analytical reports. An enterprise data warehouse imposes a standard treatment of data and can grow with a business s needs by adding classifications as they emerge in the business model. A data warehousing dw is process for collecting and managing data from varied sources to provide meaningful business insights.

A data warehouse is a federated repository for all the data that an enterprise s various business systems collect. A data warehouse is a subject oriented integrated time variant and non volatile collection of data in support of management s decision making process. Different people have different definitions for a data warehouse. Dws are central repositories of integrated data from one or more disparate sources.

The data warehouse is the core of the bi system which is built for data analysis and reporting. Ideally an enterprise data warehouse provides full access to all the data in an organization without compromising the security or integrity of that data. What is data warehousing. It s also a particularly important component of digital transformation initiatives and it can aid in other corporate processes such as risk management business process management and mergers and acquisitions.

In computing a data warehouse dw or dwh also known as an enterprise data warehouse edw is a system used for reporting and data analysis and is considered a core component of business intelligence. Data warehousing data warehouse definition. A data warehouse is designed to support business decisions by allowing data consolidation analysis and reporting at different aggregate levels. The most popular definition came from bill inmon who provided the following.

A data warehouse is not necessarily the same concept as a standard database. Data is populated into the dw through the processes.