Deriving Dimension attributes from Fact table

Facts or Dimension Attributes?

My company is currently building a data warehouse and I have a design issue that I am not sure how to address. In general, our business is selling an asset, such as the stock of a corporation, with a certain number of shares and a value. The value of th

fact table as a dimension

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

dimension attribute denormalisation in fact table

Hello, in our data warehouse, we have a fact table containing about 100 million rows per month joined to a customer dimension containing about 10 million customers. The customer dimension contains 30 attributes. Two of these attributes are very

Painted into a healthcare DW "digital corner" -- or is it wrong to have keys and attributes in a single table

Here's the short version: Is it OK to have a table which contains keys from other dimensions AND includes additional fields for attributes? (Is this a dimension, outrigger, factless, or merely unusual or just wrong?) Here's the long version (with

Using a dimension in multiple fact tables with different grain and support SCD

Hello users, i've a question about using a dimension in fact tables with different granularity and at the same time retain support for SCD. My scenario: I have one Dimension called Apartment. This Dimension cosists of the following related

Transactional detail fact table w/complimentary snapshot table. How do the two play together?

Take a detail daily banking transaction table with standard credit and debit level transactions. I want to build the accompanying snapshot that would present the higher level rollups of these lower transactions: There are about 250 daily transaction

Sparse dimensions, how to handle?

I've purchased the book "The Microsoft Data Warehouse Toolkit" and have reviewed it in order to build out a data warehouse solution I am currently designing. I am stuck in a spot that I don't seem to find any examples of , or am not abl

Multi valued dimension attributes, weighting factor and cognos

Hi, we have several attributes in our product and customer dimension which might by multi valued. We modelled these as multi valued dimension attributes using bridge tables and weighting factors therein. Can anybody reference a best practice

Fact table with multiple date ?

Hi, I am modling a fact table for prisoners inscription in order to track historical changes. An admission is the hole stay comprise of one or many inscriptions usually separated by transferts between institutions. In the transactionnal system, it

Audit Dimension Help

Hello all. I'm at the stage now where im building the audit dimension for my warehouse. I am having a little trouble figuring out a few things though. How do you aggregate the data from the error event fact table into the audit dimension? Some records

Sneak Peek - AOC Breeze

The AOC Breeze is a 8 inch tablet running Google's Android OS. Whilst the price tag might classify the Breeze as a budget segment tablet, its list of features says otherwise. With a USB2.0 port, Micro SDcard reader, 4GB internal memory, and WiFi b/g, this

MDX(or something else) for getting history based on last dimension characteristic for SCD.

Hi everyone, I am implementing a cube and I run into a problem with slowly changing dimensions(SCD type 2). I guess it might be resolved somehow with MDX or somehow else, maybe you guys can help me to resolve it. The problem: I have SCD, say Policy wit

Dimension loading sources

Hi all, It's about datawarehouse dimension loading : should i load dimension from a master data management referential or from the truth of my business application. In the first case, dimension will be cleaner than in the second case but it will not