Kimball Technical DW/BI System Architecture

The Kimball technical system architecture separates the data and
processes comprising the DW/BI system into the backroom extract,
transformation and load (ETL) environment and the front room
presentation area, as illustrated in the following diagram.

Figure 1: Kimball technical system architecture diagram.

The Kimball technical system architecture focuses on the following components:

Backroom ETL Read More →

The Lorenz system is a system of ordinary differential equations first studied by Edward Lorenz. It is notable for having chaotic solutions for certain parameter values and initial conditions. In particular, the Lorenz attractor is a set of chaotic solutions of the Lorenz system. In popular media the 'butterfly effect' stems from the real-world implications Read More →

Analysez les risques dès le début du projet
Un projet se déroule généralement en 5 étapes :

La formalisation du besoin.

L’étude de faisabilité.

La conception.

La réalisation.

La finalisation.

1. La formalisation du besoin
C’est le moment où vous posez les bases de votre projet. Pour les gros projets, vous pourrez être amené à réaliser une étude d’opportunité mais le plus souvent pour Read More →

To keep up to date with all the technologies in SQL Server, the DBA or developer who wants to stay ahead is faced with the struggle of constant learning.
The SQL Server Stairways is our solution to this problem. Designed to smooth out even the steepest learning curve, each Stairway is a SQL tutorial series focused Read More →
The SQL language offers the following types of JOIN:


The result of a JOIN does not depends on the presence of a relationship in the data model. You can use any column of a table in a JOIN condition.
In DAX there are two ways you can obtain a JOIN behavior. First, you can Read More →

In this article (Italian), we have already discussed Continuous Integration and DLM. We described the main reasons for putting a database under source control and for testing our databases. In this article, we are going to discuss a real scenario of SQL Server unit testing with the tSQLt framework.
What Is Unit Testing
In computer programming, unit Read More →

Automating Analysis Services Tabular Projects - Part 1: Deployment
My team recently starting using Microsoft’s Tabular Model databases at work, as an intermediate layer between an operational data store and the end users who consume this data from Power BI. Tabular Models are an OLAP technology, providing an in-memory data cube, with measures being defined using Read More →

In Analysis Services, almost every object and workload is programmable, and often there is more than one approach to choose from. Options include writing managed code, script, or using open standards like XMLA and MSOLAP if your solution requirements preclude using the .NET framework.
What you can accomplish in code
Typical programming scenarios include server and database Read More →