I found a lesion on how to design a data warehouse. Generally the star schema is used. It has lots of diagrams and includes test questions. Just what advanced RBase uses could use. In section 7 (ERD to Star), the first GIF is not called properly (does not show). I know where the other two working GIFs are located. The other GIF may be close by. http://www.cis.drexel.edu/faculty/song/WESST/WESST2.htm RRR
