The database is designed, built, and maintained the information system. The dramatically increase in governments and companies’ transactions meet by increase in their databases, data storage and quires which used to retrieve data from database. They use information processing system which is used for storage of everyday activities about them. However, information processing systems rely on online transaction processing (OLTP) in database, which is not so easily to access to the governments and companies' users. Moreover, database was not designed to support multi-dimensional view. Therefore, Multi-dimensional view, Online Analytical Processing (OLAP) and reducing time consuming for reports generating leads to the concept of a data warehouse. This study review of database and data warehouse. Moreover, identify the different between them