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Our consultants come armed with both technical and soft skills to support you to make the most of your data.
The Data School has been paramount to our success at JLL. It has allowed us to bring in highly skilled Tableau and Alteryx consultants. It saves considerable time trying to recruit contractors as I know their skills and training are to the highest standard. Over the past 5 years my team has developed analytical insights which have generated multi million dollar savings of which a considerable amount can be attributed to the Data School consultants we have had working on projects.
Paul Chapman, Global Director of Performance Management, BI and Innovation at JLL
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EMEA
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Community Impact 2024
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Europe
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What our consultants are working on
We believe that sharing knowledge and expertise is key to driving innovation and growth in the data community. That's why we're excited to share our latest insights, tutorials, and industry trends with you through this blog.
Written by our team of experienced data consultants, these posts aim to solidify their own learning while giving back to the community.
Tue 14 Apr 2026 | Laura Brylka
Daten-Scaffolding mit Tableau Prep: Zeilen erstellen für fehlende Datumswerte
Manchmal sind die Daten, die wir haben, an sich nicht ausreichend für die Analyse die wir damit machen wollen. Dazu muss man neue Zeilen oder Spalten behelfsmäßig in die Daten einbauen
Sun 12 Apr 2026 | Oliver Furtak
Makeover Monday: Mastering the Balance Between Time and Expectations
Why Makeover Monday?
Working under time pressure is no walk in the park. To understand how managing your own expectations can help, the Makeover Monday Challenge offers the ideal training opportunity.
The challenge is primarily about planning and efficiency
Tue 24 Mar 2026 | Shabnam Dost
Level of Detail
Definition: Level of Detail (LOD) expressions allow to perform to show visualizations at a different granularity that what is currently shown. They provide the flexibility to bind a calculation to a specific dimension, in order for you to look at a broader total or a more granular level
Tue 07 Apr 2026 | George Rycroft
Data Modelling in Power BI and Power Query
Creating a data model in Power BI (PBI) can feel unfamiliar if you’re coming from Tableau. This blog provides a clear guide to how the data model in PBI works and highlights key differences compared to Tableau
Fri 10 Apr 2026 | Jacob Aronson
Finding Multiples of 37 ... in Tableau Prep?
Tableau Prep Builder is Tableau's data preparation and transformation program, which is useful for reshaping your data before visualization. This month of training we have the benefit of being coached by Carl Allchin, who literally "wrote the book" on Tableau Prep
Sun 12 Apr 2026 | Aschraf Aouina
Alteryx Week 120: Popular Baby Names
Task:
Das Ziel besteht darin, für jedes Jahr im Zeitraum von 1880 bis 2017 die jeweils beliebtesten registrierten Babynamen für Jungen und Mädchen zu ermitteln und deren Häufigkeit zu bestimmen.
Data:
Challenge_120_start_file.yxmd
1. Data Input
Einlesen der Ausgangsdaten.
2
Mon 06 Apr 2026 | Shivam Wadhia
Pivoting in Alteryx
Data is often not stored in the shape we need for analysis. It may be structured for data entry or storage, rather than aggregation or modelling. Pivoting refers to reshaping data so that it can be worked with more effectively
Sun 12 Apr 2026 | Aschraf Aouina
Mastering Joins in Alteryx
In this blog, I will demonstrate common join methods using two sample data records in Alteryx. Most joins can be performed using the Join Tool. For more advanced scenarios, such as full outer joins, a combination of the Join Tool and Union Tool is required
Sat 11 Apr 2026 | Arushi Pant
How to create a parameter in Power BI - WOW#15/ 2023
If there is one thing you need to know about me, it is that I LOVE coffee, and let's just say this affinity towards coffee often results in my desk space getting progressively smaller throughout the day due to the number of mugs I collect
Wed 08 Apr 2026 | Harvey Lloyd-Smith
Cardinality in Power BI Models
Cardinality is the relationship between rows of data in separate tables within a data model. Its vital for determining how many times a value appears in a table and whether values are unique
Wed 08 Apr 2026 | Francesca Plaskett
How to reset all your parameters using one button
Have you ever wanted a simple button for your user to reset their parameters in one easy click? In this blog, learn how to do just that.
Thu 09 Apr 2026 | Vaishnavi Shankar
Tableau Server or Cloud: Making the Right Call for Your Business
Once you’ve built a dashboard in Tableau Desktop, it only lives on your machine
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