Transaction Fact design

Fact table design: Sales Transaction with multiple Discount rows

Hi, I am designing a Sales DW where we can have multiple discounts on a given transaction line. I created a SalesTransaction (ST) fact table and a SalesDiscount (SD) fact table. In the current design the ST table has its own key that is a bigint

Guidelines for FACT Table Design for High-Transaction Volume and High # of Measures ...

Hi All - This inquiry could actually be two questions, but the requirement is really presentation of row-wise high volume transactional data in a column-wise (columnar) FACT table. Here is a sample transactional data set: Interval Date TimeUni

character data in a fact table?

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

Modeling Question - Accumulating Snapshot vs. Event Transactions

I have a business process that has 6 distinct steps from start to conclusion for each instance of the process, we'll call it a case. Each case has two employees assigned to it, 1 owner and 1 co-owner. The owner and co-owner each have different

Conformed Dimension for Transaction Fact and Accumulating Snapshot Fact Table

I'm working on a new warehouse application for reporting against our IT Project database. I want to create both a transaction fact table and an accumulating snapshot fact table. The project database (source) consists of multiple normalized tables to

Questionnaire for medical record entries

Good afternoon, I am currently working on a data warehouse in the health care sector and I currently facing this problem: The aim of this warehouse is to have an overview of a cancer therapy. So, I have created the following fact table

Dimension Modeling Design challenge - Help Needed

Guys, Help me out identifying whats wrong with my model. I am able to get to the right data, but size of the fact table is arguably high and not gladly acceptable. Let me show you the picture (tip of the iceberg) Data table in transaction db is

Dimension Design with Multiple Data Sources (ORACLE and SQL Server)

Hi All. We have a client that is currently migrating from a legacy SQL Server (6.5) based ERP to Oracle e-Business Suite. The old legacy system was distributed in both application and database, however the application and database structure was (almost

Common elements in web design layout

Creating a website design is not a simple process. You have to know many details related to web designing to give your websites the most perfect look. Web design layouts vary with respect to the requirements and preferences. Here are a few common

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

ForuMotion Coffee Mug Design

I just finished up my latest design which is a Fan Based art that I will be ordering very soon my own Official ForuMotion Coffee Mug from my design in photoshop. I drink coffee a lot and this way I will never have to forget about ForuMotion. I canno

Reasons to use a 3NF design over a Dimensional Model design for an EDW - Discussion

I've been dimensional modelling for well over 10 years, and strongly held the opinon that only a dimensional model would work for an EDW, however i'm now begining to think that there are certain requirements that lead to a 3NF design for an 'Enterprise

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