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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 04 Aug 2026 | Joe O'Connor
DRY SQL: Harnessing Jinja and Macros in dbt
DRY (Don't Repeat Yourself) is a fundamental principle of software development. The opposite is WET (Write Everything Twice)
Tue 04 Aug 2026 | Joe O'Connor
Secure, Event-Driven Data Ingestion: Connecting AWS S3 to Snowflake via Snowpipe
With raw JSON data stored in an S3 bucket, the next stage of your ELT process will likely be bringing that data into your data warehouse (in my case, Snowflake)
Wed 05 Aug 2026 | Oliver Furtak
Meeting gerettet: Wie die Transaktionsanalyse hilft
Das Potenzial – und die Tücken – von Gruppenarbeit
Synergien und gebündelte Expertise machen die Arbeit in Teams so wertvoll. Gleichzeitig ist die zwischenmenschliche Kommunikation hochkomplex
Tue 04 Aug 2026 | Bianca Beingolea-Joseph
So you want a new Tableau feature...
Recently, I was working with my cohort on creating a Running Sum calculation; we wanted to verify that the total in the last row equaled the total for Superstore sales. This led us to discover that there is no easy way to view all rows while working in Tableau Prep
Tue 04 Aug 2026 | Dylan Serino
DAX Applications - An Overview
What is DAX?
DAX is a Power BI built-in formula language and stands for Data Analysis Expressions. It is mainly used to create custom calculations to answer specific questions that most basic functions cannot
Tue 04 Aug 2026 | Carla Villafana
Web Scraping in Alteryx Walkthrough
In this blog, I will walk you through a web scraping example using Alteryx.
What is web scraping? Web scraping is the process of extracting data from a website. For instance, let’s say there’s a website with a list of books and authors you want to use for a project
Tue 04 Aug 2026 | Ping HIll
Lessons Learned from Teaching My First Tableau Workshop
I recently had the opportunity to teach a public Tableau workshop. This event is part of our training where we choose a section to teach. Sections vary from Dashboard best practices, Joins and Unions, Actions and Interactivity, etc
Tue 04 Aug 2026 | Victor Yuan
Using URL Actions to Connect Your Tableau Dashboards
Improve dashboard performance without sacrificing navigation by connecting Tableau workbooks with URL Actions.
Mon 03 Aug 2026 | Skyla Patterson
Date Scaffolding with Cross Joins
This blog will review scaffolding in Tableau Prep, starting with short definitions and then a walkthrough of an activity done in training.
What is scaffolding?
Scaffolding is a way to create missing values needed for analytic goals
Wed 22 Jul 2026 | Kaori Ikarashi
How to Use Regex in Alteryx for Data Preparation
What is Regex?
Regular Expressions (Regex) are a sequence of characters used to define a search pattern. They allow you to efficiently search, match, extract, validate, and replace text based on specific patterns
Mon 20 Jul 2026 | Joss Lazenby
Configuring Secret Variables in Kestra Open Source
Kestra is an open-source, event-driven orchestration platform that can be used to automate data engineering workflows. It's declarative, language agnostic architecture makes it both versatile and user-friendly, enabling developers to manage pipelines through YAML configurations
Fri 31 Jul 2026 | Mila Kholodiy
How to Get Ready for the Tableau Data Analyst Certification
A guide to passing the Salesforce Certified Tableau Data Analyst exam — how it works, what each section is worth, the key topics to understand, and the resources that will get you there.
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