Textual values in dimension tables

Textual Facts in the fact table

Its a new financial 'capital markets' dimensional reporting model (for IPO - raise money for an issuer by issuing new equity common stock securities) that's in design stage. There are some textual attributes of the grain of several fact tables for which

NULL Values in Fact Table

In an Accumulating Snapshot that has multiple dates, where we are revisiting the fact rows as additional events occur, should the foreign keys to the date dimension for dates that have not yet occurred be set to NULL or should they point to a

Textual fact or Junk dimension?

Hello, I have been following the forum for a while now and I must say that many doubts about dimensional modeling have gone thank to you all. However I am facing now the modeling of a cube and I am somewhat stuck on what is the best

Null values in facts, yes or no?

Dear all, I'm wondering if anyone could help me out with the following (simplified) case. This is for my Business Intelligence study on a Dutch university where we do a project to apply BI to the student information systems, especially their results an

Building aggregate fact tables from staging

Hi, Is it acceptable to create an aggregate fact table from the staging tables after you have cleaned out the data in staging? I know usually you're supposed to create aggregate fact tables from the fact/dimension tables, however can it be done straigh

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

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

Dimensional Model Vs Views as Structure for BOBJ Universe

I have a fairly complex data mart (multiple fact tables: 5 at the moment and several more coming; 4 shared dimensions across the 5 facts, 26 total dimensions and several bridge tables). I used standard best practices for building the Business Objects

Supplier Dimension to include Customers & Employees

We are in the process of finalising Dimensions /Facts to be used in Datawarehouse. Already finalised separate dimensions (eg Customer,Supplier,Employee) to handle requirements of Sales,Purchace and Human resourses. During designing Accounts Payable Fact

How to handle a Type I or II dimension with a snowflaked customer sub dimension (kimball book page 337, 338)

Hello, Within Ralph his new book he describes recommanded situations for snowflaking a dimension. His example is a large customer (visitor) dimension. (page 337, 338 and figure 10-6). I find the artical good, but there is missing one part of this

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

Dimension with two hierarchies

I need to design a dimension with two hierarchies 1. Location -> Building -> Room -> Cabin 2. Location ->Building I need the hierarchy 1 to be referenced in one FACT table and hierarchy 2 in other FACT. But my ETL tool allows only the dimension ke

Date Dimension

Hi All, I understood Kimball way of implementation Date Dimension table. In a way, the lowest granularity date represent each record, with the following month, quarter and year attribute. However, what happen if the lowest grain of certain fact are at