In computing, a records warehouse (DW or DWH), additionally called an corporation records warehouse (EDW), is a system used for reporting and records evaluation, and is taken into consideration a middle aspect of business intelligence. DWs are important repositories of incorporated records from one or greater disparate assets. They save contemporary and ancient data in one single area which are used for developing analytical reviews for workers at some stage in the company.

The data stored within the warehouse is uploaded from the operational structures (inclusive of advertising and marketing or income). The information may additionally skip via an operational records save and may require statistics cleansing for additional operations to ensure records quality earlier than it's miles used within the DW for reporting.