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Enhancing your data team with ours
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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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 10 Nov 2026 | Hannah Norfolk
Understanding different models in dbt
Models in dbt are SQL SELECT statements that provide a modular step of logic between your source and final transformed datasets. (Note: these can also be python statements
Mon 09 Nov 2026 | Lorna Brown
What did it take to get into DS61
The last cohort of 2027 just started, DS61, Let's see what it took to get in
If you are interested in joining you can apply for The Data School here.
Alex B
Alizeh R
Darrell B
Ella V
Keshika CG
Susannah W
Mon 09 Nov 2026 | Michael Guillette
Alteryx: Pagination — One Page Is Never Enough!
So, I learned Alteryx this week, and let me tell you, it was quite the experience!
There are a lot of features that make Alteryx an interesting tool to work with, but one that particularly caught my attention was its ability to retrieve data directly from an API
Mon 09 Nov 2026 | Bethany Haysom
An introduction to GitHub Workflows
Why is Git important?
In Data Engineering, version control serves as a 'backup' for code, facilitates collaboration and logs every code change. Git is a useful tool for version control
Mon 09 Nov 2026 | Robbin Vernooij
Git flow diagram
As we're going over and putting version control to practice in our data engineering training, I thought to make a brief outline of what this might look like from a diagram perspective when using Git on Power BI's .pbib files.
Mon 09 Nov 2026 | Hannah Norfolk
Connecting dbt to Snowflake Using Key-pair Authentication (Windows)
I wanted to have some practice with dbt without using my company account. As dbt sits on top of a data platform (such as Snowflake, Redshift or Databricks), I also needed to create a personal account with one of these platforms before connecting it to dbt
Sat 07 Nov 2026 | Rahim Afsana
Regex in Alteryx: Using It in the Filter and Formula Tools
Most people meet regex in Alteryx through the RegEx tool, but you can also use it directly inside the Filter and Formula tools
Fri 06 Nov 2026 | Xica Felix
Everyday Tableau Desktop Tips, Tricks, and Shortcuts
We have all been there: you have a clear vision for a dashboard, but your momentum stalls while clicking through nested menus just to build a quick calculation or format a number. Getting faster in Tableau is not about rushing your analysis
Thu 05 Nov 2026 | Tanvi Chettiyar
Alteryx Macros as Reusable Functions: A Quick Guide
If you have ever done any programming or advanced spreadsheet modeling, modular functions are second nature. You write a piece of logic once, give it an input, define the rules, and get an output:
* Input: Raw data and parameters go in
Mon 26 Oct 2026 | Amy Afriyie
Understanding dbt Models
My previous blog post explored what dbt is and where it fits in the ELT process, highlighting that dbt allows for transformations to raw data that has already been loaded into a data warehouse.
But how does dbt actually transform data?.. This is where dbt models come in
Thu 05 Nov 2026 | Hannah Norfolk
Introduction to Git
What is Git?
* Git is a version control system. It’s something you can download onto your computer for free.
* It works by storing a history of your files --> .sql, .py, .txt, .pdf,
Thu 05 Nov 2026 | Arushi Pant
How to interpret a Tableau Performance recording. The Summary View.
When building Tableau dashboards, it’s easy to inadvertently introduce elements that drag down performance. While the Workbook Optimizer is an excellent first step for troubleshooting, complex issues often require a deeper dive into the backend. That’s where Performance Recordings come in
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