PPT Data Warehousing Data Models and OLAP operations PowerPoint
What Is Roll Up In Data Warehouse. By climbing up a concept hierarchy for a dimension. Before any raw data is purged, the minimum, maximum, and.
PPT Data Warehousing Data Models and OLAP operations PowerPoint
By climbing up a concept hierarchy for a dimension. Summarize data by climbing up the hierarchy or by dimension reduction drill down (roll down):. Before any raw data is purged, the minimum, maximum, and. In roll up, the online analytical processing (olap) system summarizes the data for specific attributes.
Summarize data by climbing up the hierarchy or by dimension reduction drill down (roll down):. Summarize data by climbing up the hierarchy or by dimension reduction drill down (roll down):. In roll up, the online analytical processing (olap) system summarizes the data for specific attributes. Before any raw data is purged, the minimum, maximum, and. By climbing up a concept hierarchy for a dimension.
