Data Warehouse
524
浏览
0
关注

In computing, a data warehouse or enterprise data warehouse (DW, DWH, or EDW) is a database used for Business reporting|reporting and data analysis. It is a central repository of data which is created by integrating data from one or more disparate sources. Data warehouses store current as well as historical data and are used for creating trending reports for senior management reporting such as annual and quarterly comparisons. The data stored in the warehouse are Uploading and downloading|uploaded from the operational systems (such as marketing, sales etc., shown in the figure to the right). The data may pass through an operational data store for additional operations before they are used in the DW for reporting. The typical Extract, transform, load|ETL-based data warehouse uses Staging (data)|staging, data integration, and access layers to house its key functions. The staging layer or staging database stores raw data extracted from each of the disparate source data systems. The...
[展开]
相关概念
Case Study    
Data Mining    
Indexation    
Data Cube    
Data Model    
主要的会议/期刊
演化趋势
Chart will load here
Data Warehouse文章数量变化趋势

Feedback
Feedback
Feedback
我想反馈:
排行榜