Online data warehouses (ODWs) are central information systems and repositories that help companies gain insights and make better decisions using business intelligence. They are able to store summaries of information that has been extracted converted, loaded, and transformed (ETL) from diverse sources like internal operational databases, customer-interface software such as marketing and sales; as well as external partner systems.

They serve as a single source of truth, centralizing data within a non-volatile and standardized system that is accessible to authorized employees. A data warehouse supports online analytical processing (OLAP) which lets users perform multidimensional analysis of data quickly and efficiently. A typical warehouse may be many petabytes in size.

Data warehouse tools are software components that support operations on a vast data set, such as reading, collecting and transferring. Xplenty is a well-known example and so are Amazon Redshift, Teradata and IBM Infosphere.

Data warehouses allow dataroomtechs.info businesses to make better decisions by removing the need rely solely on intuition or incomplete data. It also eliminates the need for slow and inefficient systems. Furthermore, it gives the ability to analyze multiple time periods and identify trends, allowing decision makers to be more confident in their decisions. Data warehousing is beneficial to businesses in any sector. It allows them to improve campaigns, decrease churn, and boost revenue.