Op 25 jul. 2012 om 16:24 heeft Mircea Filip Lungu mircea.lungu@gmail.com het volgende geschreven:
Do you know of any data sources that have the following two properties?
- There exists a set of relationships between low level, leaf entities
- The low level, leaf entities can be aggregated along containment relationships
Uhm, you did look at all the work done on data warehousing, data cubes, OLAP, star & snowflake scheme?
http://blogs.microsoft.co.il/blogs/barbaro/archive/2010/02/10/free-data-ware...
Stephan