| 摘要 |
<p>Preferred embodiments of the invention provide systems and methods for improving the speed and efficiency of a data warehouse. The invention enables the loading of data from different data sources into a common data warehouse structure. Preferred embodiments include an ETL process is modified to perform a joined indexing operation which reduces the number of lookup requests required. Further embodiments contemplate a date dimension and hierarchical data structure which improve operation speed.</p> |
