O'Reilly logo

SAP® BW: A Step-by-Step Guide by P.E. Henry Fu, Ph.D. Biao Fu

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 8. Aggregates and Multi-Cubes

Most users need to access only a subset of information in an InfoCube. In Section 6.2, for example, the East region users were not allowed to access other regions' data. In that case, we could create a new InfoCube, which contained only the East region sales data, a subset of the original InfoCube. Because the new InfoCube is smaller, the required disk I/O volume during query execution will be smaller, too, and the East region users would therefore see improved query performance.

SAP implements this idea in BW and calls the new InfoCube an aggregate. An InfoCube can have multiple aggregates, and the aggregates are transparent to users. It means that we create queries upon InfoCubes, not aggregates. For a query ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required