Does it belong in the stage tables or fact tables?

Is it a best practice to truncate a stage table before every load? --- RPC

Initial stage tables from multiple sources?

I was somewhat confused while reading this: The DWH ETL Toolkit, On page 116, Chapter 4, Cleaning and Conforming, Assumptions, in the first bullet "...customer information from various sources initially can be staged in a table [. . .] whose

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

Modelling question - Multiple fact tables with one to many relationships and querying from many fact tables

Its a new capital markets data warehouse in design stage. I have deal_deatils_fact - 1 row per deal with all measures at deal level - dealID (Degenerative DIemsnion - DD) deal_tranche_fact - 1 row per deal per tranche with all measures at the

Regarding Factless Fact Tables

Some time ago I was asked to build the BI platform for a road safety organization. The warehouse was built of three primary fact tables, each with a collection of associated dimensions. I am now trying to branch out into ETL and Warehouse design, and from

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

Combination of SCD2, partial snowflake, Effective and end dates in fact table

We are creating dataware housing for multitanant based systems for HR module. Requirement ?Able to report on historical data for any given data time. Active employees headcount till given date. (as of that day) Onhire and termination based on perticula

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

Staging Activities

What are the common staging activities that the Kimball method recognizes? Traditionally I have used staging databases to 1) Decouple from the source-to-Data Mart for restartability 2) Consolidate multiple sources and source formats into a single

how to model an event log

I am trying to model the following event data: Field1 = event date, field2 = event code, field3 = location code, field4 = customer_id, fields5 to 8 are event code specific, ie.

My side project: A Gangs of New York mod

Wanted to let everyone know about a side project I started, currently in the "let's see what I can tinker around with without breaking the ga--oh fuck I just broke the game I sure wish I knew what I was doing" stage. "The Bloody Ould

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

Announcements and Sticky topics in seperate tables!

Yep, according to the topic /other-problems-f46/possible-t76511.htm it isn't possible to split global announcements and stickies in a seperate table. I'm suggesting for this to be possible! I hate it when the forums are so messed up! I'm sure the