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Query processing issues in data warehouses (2000).
| Content Provider | CiteSeerX |
|---|---|
| Author | Srinivasa, Srinath |
| Abstract | Data warehouses store organizational data extracted from many operational databases. They are mainly used for decision support and OLAP applications. As a result, queries to a data warehouse have unique idiosyncrasies that have to be separately addressed. Data warehouse queries usually are much less frequent than OLTP queries and touch upon much more data than a typical OLTP query. In addition, different paradigms of querying are often necessary to provide efficient support for the analyst who uses the data warehouse. This paper addresses issues related to query processing in data warehouses and contrasts different approaches. 1 Introduction to Data Warehouses Database systems are widely employed by organizations that record daily operations. Such databases are called operational databases. Operational databases are managed using Online Transaction Processing Systems (OLTP), which optimize database operations for speed and efficiency of search and update. However, in addition... |
| File Format | |
| Publisher Date | 2000-01-01 |
| Access Restriction | Open |
| Subject Keyword | Data Warehouse Operational Database Data Warehouse Database System Oltp Query Olap Application Unique Idiosyncrasy Decision Support Contrast Different Approach Online Transaction Processing System Many Operational Database Organizational Data Typical Oltp Query Efficient Support Data Warehouse Query Different Paradigm Database Operation Daily Operation |
| Content Type | Text |
| Resource Type | Article |
