John Bartow
john at winhaven.net
Fri Sep 28 13:48:33 CDT 2007
It goes through "transformation" from normalized data into the data warehouse. Basic data elements into product. Think of it as similar to using tables to create a query. In turn the query may be used to create a report. The data is the same but presented in the format needed for the purpose of creating a report and then being observed by people. The query is no way to store data but is a way to combine data into the use it serves at that moment. The report is no way to store data but is a way to present it in a format that is human friendly. Likewise a data warehouse is a specific use (product) of the basic data that presents it - or transforms it - into a different format. Not a format that you would want to store it in but one that allows for the analysis done via data warehousing. I feel like I'm starting to sound like one of Drew's analogies ;o) -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of max.wanadoo at gmail.com What I don't understand is how we get from that to Data Marts.