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Blog
Data Vault – Link Loads explained – Part One
The Data Vault Model is known for its flexibility and its ability to scale out. One of the reasons which makes the model so scalable is the way relationships are realized. Despite how the relationship is modelled in the source system, it will be a Many-to-Many-Table in the Data Vault Model.
Blog
Power Query: How to unpivot a dynamic number of columns
A powerful function in Power Query is to unpivot a given data set which means to rotate data in columns to rows. This is useful for a lot of statistical data sets that you will find on the web because those data sets usually have the time (for example the year) on the columns.
Blog
DAX vs. MDX: An example
I’m often asked about the key differences between DAX and MDX or in more general, the difference between the tabular and the multidimensional model. From my presentation on the PASS Camp 2012 in Germany I’d like to share some of the ideas here.
Blog
Combining multiple tables with valid from/to date ranges into a single dimension
Tracking historical changes within a dimension is a common task in data warehousing and well covered by Ralph Kimball’s slowly changing dimension (SCD) methods. In short, the SCD methods proposed by Ralph Kimball assume, that the source system (for example the ERP system) doesn’t keep historical versions of its data records, so changes need to be detected at the time when data is loaded into the warehouse.
Blog
Using Group By and Row Number in SQL statements
In this article I want to show some features about the Group By clause and the Row Number window function that you can use in SQL statements.
There are many situations where you want a unique list of items. But in the data source the items are not unique.
Blog
Fixing SQL 2012 SSIS Deployment Error 6522 „A required privilege is not held by the client“
Last week at customer side we faced the issue that project deployment of a SQL 2012 SSIS Project was not possible any more. On Wednesday we deployed the Project with Project-Deployment-Modell and all went fine.
Workshop
Data Product Design: Verprobung und Bewertung Ihrer Produktidee zu digitalen Services
Sie wollen mit digitalen Services Ihre Kunden und Mitarbeiter begeistern? Aber Sie sind sich nicht sicher, ob Ihre Visionen technisch umsetzbar und wirtschaftlich lohnenswert sind? Anhand eines Prototypen prüfen wir Ihre Ideen auf Herz und Nieren.
ORAYLIS People
Gesundheitsmanagement bei ORAYLIS – im Gespräch mit Georgia & Jörg
Vor einigen Wochen wurde bei ORAYLIS ein betriebliches Gesundheitsmanagement eingeführt. In einem kurzen Interview mit Personalreferentin Georgia Thume und Inhaber und Geschäftsführer Jörg Plümacher klären wir die wichtigsten Fragen.
Workshop
Business Innovation Lab: Gemeinsam zu Ihrem digitalen Geschäftsmodell
Wir zeigen Ihnen, welche Werte wirklich in Ihren Daten stecken – und: wie Sie diese Potenziale für die digitale Transformation Ihres Unternehmens nutzen können.
