Fact table, strings and row size

adrianw at 15h08
26
Jan
2011
Fact table, strings and row size

I'm very new to dimensional modelling, but I'm looking at a design made by someone very experienced.

That design has in each fact table a set of metadata attributes, e.g. "data provider", along with denormalised versions of things are really dimensions but which no one is ever going to query and make the design too complex to have as dimensions, e.g. currency code, currency description.

So an example row would be:
About
This topic belongs to the forum
  • Data Warehousing and Business Intelligence based on dimensional modeling and the Kimball Lifecycle.

  • Numbers of topics : 1858
  • Numbers of messages : 8714
  • Numbers of users : 3801
  • Numbers of points : 1672
Similar topics
I just changed companies. i was accustomed to pure star schemas with fact tables containing only foreign keys to dimension tables and number measures that could be aggregated (sum, average, min, max). At my new job, I find dims with foreign keys
I may be misguided in my attempt to make a dimensional model here, but I will explain the scenario. We provide a value add service in the supply chain business...in this case by depicting a scorecard of the accuracy of vendors' product sizing
Hi I'm presently modeling a data mart and I would like to use a fact table as a dimension for another fact table. Is it something doable and efficient or is there a better way to do that? if yes should i just create a surrogate key and link both
I have a fact table designed to hold catalog information where the grain is defined as one row = one catalog item fact by warehouse by warehouse location in order to show warehouse inventories. One item may be in multiple warehouses, and in each the item
Please explain the indexing strategy which is in use in your organisation for fact tables in your current database(oracle, sybase, db2) Specify volume as the indexing strategy may be based upon the volume of data. Is there a well laid out strategy
Forums from same category
See also
more_less
Informations

8 Replies For the topic :
"Fact table, strings and row size"

This topic has been viewed 947 times.

Last message :
26/01/2011 at 15h08 by "adrianw"