Efficient update methods for large volume data updates in data warehouses
US8055609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2008 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Mar 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/283
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for ensuring large and frequent updates to a data warehouse. The process leverages a set of temporary staging tables to track the updates. A set of intermediate steps are performed to accomplish bulk deletions of the outdated changed records, and perform modifications to the map tables for models such as snowflake. Finally, bulk load operations load the updates and insert them into the final dimension tables. The process ensures performance comparable to insertion-only schemes with at most only slight performance degradation. Furthermore, a modified process is applied on the newfact data warehouse dimension model. The process can be readily adapted to handle star schema and other hierarchical data warehouse models.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.