Make a web site - 314 Chapter 10 Figure 10-37: Musicians, bands, their
314 Chapter 10 Figure 10-37: Musicians, bands, their online advertisements, and some other goodies. How It Works Figure 10-37 shows the analyzed data warehouse database model, for online musician and band advertisements. The most significant requirement is to ultimately produce a single star schema, if a single star schema is possible. Also add any dimensional and fact information shown as additional in Figure 10-32. Figure 10-37 shows that the SHOW table is actually fact information, not dimensional. Examine Figure 10-37 once more. Think about the records in the tables. Yes, many advertisements are possible. However, a simple search of the Internet on Web sites such as www.themode.com and www.ticketmaster.com will reveal to you the sheer volume of advertisements, musicians, bands, shows, discography (released CDs), and venues. Figure 10-38 takes another slant on this data warehouse database model by rolling all of these tables into a single fact table. Musician musician_id musician phone email instruments skills Advertisement advertisement_id band_id (FK) musician_id (FK) ad_date ad_text Band band_id band founding_date genre Discography discography_id band_id (FK) cd_name release_date price Merchandise merchandise_id band_id (FK) type price Show show_id venue_id (FK) band_id (FK) venue date time Venue venue_id venue address directions phone
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