文件名称：数据仓库简介
文件大小：957KB
文件格式：PDF
更新时间：2019-03-16 08:25:30
数据仓库
A data warehouse is a database, which is kept separate from the organization's operational database. There is no frequent updating done in a data warehouse. It possesses consolidated historical data, which helps the organization to analyze its business. A data warehouse helps executives to organize, understand, and use their data to take strategic decisions. Data warehouse systems help in the integration of diversity of application systems. A data warehouse system helps in consolidated historical data analysis.