Like a data lake, the data warehouse stores large amounts of information and makes it available for analysis. The difference between the terms lies in the way the data is stored. The data warehouse collects data from different sources and transfers it directly into structures. This enables immediate analysis of the data. In this way, the data that is not relevant for the analysis is sorted out at an early stage and before it is stored. The data for a data warehouse are mainly key figures or transaction data and preferably no images or audio files.