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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
Alteryx
Partner of the Year
EMEA
Tableau
Community Impact 2024
EMEA ESMB
DataIQ
Data for Good Champion
Finalist
DataIQ
Best Data Academy or Skills Development
Finalist
Alteryx
Partner of the Year
Europe
DataIQ
Data for Good Champion
Champion
Tableau
Data for Good 2021
EMEA
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.
Sun 19 Oct 2025 | Rosh Khan
Alteryx Dynamic Input: Different Schema Error - Solution
If you’ve ever used the Dynamic Input tool in Alteryx, you might have run into this: "The schema of the input files is different.”
Even when… it’s clearly not.
You double-check the files- same number of columns, same names, same data types- yet Alteryx refuses to load them all in one go
Sun 19 Oct 2025 | Rosh Khan
Python String Functions Cheat Sheet for Beginners
If you already work with data — maybe in Tableau, Alteryx, or SQL — but you’re dipping your toes into Python, this guide’s for you. This is your quick-grab cheat sheet for string functions in Python — all the essentials you’ll need when cleaning, formatting, or exploring text data
Tue 14 Oct 2025 | Adil Ahmad
The Data Interpreter: Tableau's Fast Track to Clean Data Structures
Data isn't always in the correct format for Tableau Desktop to easily understand it. There may be empty rows or columns before the table stars, notes, stacked or headers
Sun 19 Oct 2025 | Ash Aravindhan
Shadowing a DSer on Placement
Recently, I had the opportunity to shadow Numa, who is currently completing her P4 placement. She’s working on a project involving admissions data, where her responsibilities range from data preparation to building reports in Power BI
Mon 13 Oct 2025 | Ash Aravindhan
Lessons in Leading: My experience as Project Manager
Taking on the role of Project Manager during a client project at The Data School is both exciting and challenging
Sun 19 Oct 2025 | Ai Onubogu
Tableau How-To: Dashboard Containers
Tableau containers are an essential tool for building clean, well-organized dashboards. When used effectively, containers help you guide viewers through a logical story, making insights easier to see and understand
Sun 19 Oct 2025 | Ai Onubogu
Macros in Alteryx | Part I: Standard Macro
Macros are a powerful feature in Alteryx. At their core, macros are workflows or sets of tools bundled together into a single, reusable tool that can be inserted into other workflows.
There are three types of macros in Alteryx: Standard, Batch, and Iterative
Sun 19 Oct 2025 | Ai Onubogu
Tableau How-To: Build a Cycle Plot
A cycle plot is a specialized line chart used to visualize seasonal trends in data. It helps compare values across time—especially when patterns repeat (e.g., monthly, weekly, or quarterly)
Sun 19 Oct 2025 | Ai Onubogu
APIs in Alteryx: Getting Started with the StreetEasy API
Anyone who has attempted to rent or buy in the New York and North Jersey real estate market knows that, especially post-2020, it can be an eat-or-get-eaten market
Thu 16 Oct 2025 | Francesca Plaskett
10 Things About Tableau I Wish Someone Had Told Me A Long Time Ago
Here are 10 quick tricks that I learnt in my introduction to Tableau at the Data School.
Fri 17 Oct 2025 | Kib Cheung
What does data granularity mean?
The concept of data granularity makes perfect sense… but as data newbie it can be a little confusing when we start talking about “high” vs “low” granularity, or “high” vs “low level of granularity.”...
Mon 01 Sep 2025 | Maysa Falchero
Anspruch vs. Realität
Ich wollte schon immer, dass meine Arbeit genau so aussieht, wie ich sie im Kopf habe, aber sobald ich unter Zeitdruck stehe (wie bei unseren Freitags-, Kundenprojekten, oder zum Beispiel Makeover Mondays), klafft meine Vorstellung oft von der Realität auseinander
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