Aggregate storage dimension build changes to the outline can result in all aggregate views or all data values being cleared from the database when the dimension build is finished. Aggregate Storage Database Restructuring describes the results of outline changes.
If you use multiple data sources to build dimensions, you can save processing time by performing an incremental dimension build. Incremental dimension builds enable you to defer restructuring until all data sources have been processed. For information about incremental dimension build, see Performing Deferred-Restructure Dimension Builds.
Differences between outline characteristics of block storage outlines and aggregate storage outlines affect data sources and rules files. For example, defining a dimension as sparse or dense is not relevant to aggregate storage outlines.