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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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Europe
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Data for Good Champion
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Data for Good 2021
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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.
Thu 03 Jul 2025 | Rosh Khan
Aliasing Null Dates in Tableau (The Easy Hack)
Did you know you can’t alias dates directly in Tableau like you can with text fields?
That means if you want to show something like “Christmas Period” instead of 25/12/2023, Tableau won’t let you do it natively
Thu 03 Jul 2025 | Harry Caplin
Triple Drill-Down Bar Chart in Power BI
The Triple Drill-Down Bar Chart is a smart way to let your audience explore data across three hierarchical levels without cluttering the report or overwhelming them with filters
Wed 02 Jul 2025 | Joseph Darton
Full Moons & Easter Sundays
2023 Week 16 of Preppin' Data Challenges looked at the variation of the day in which Easter Sunday falls on. Turns out this is based on the full moon
Thu 03 Jul 2025 | Mariia Sapsai
Wie kannst du eine Shape Map in Power BI Desktop erstellen?
Die Shape-Map-Visualisierung ist nur in Power BI Desktop verfügbar. Da sie sich in der Vorschau befindet, muss sie vor der Verwendung aktiviert werden
Thu 03 Jul 2025 | Mariia Sapsai
Wie kannst du eine KPI bauen?
Für diese KPI habe ich das Superstore-Dataset benutzt.
Das Erste, was wir machen können, ist ein Liniendiagramm zu erstellen. Für verschiedene Ziele kannst du verschiedene Diagrammtypen verwenden – das kann auch ein Balkendiagramm sein, je nachdem, was dir lieber ist
Thu 03 Jul 2025 | Rosh Khan
Combining Bar and Pie Charts in Tableau: A Cleaner Way to Show Totals and Percentages
When you're trying to show both absolute values and percentages of total, using separate bar and pie charts often creates more confusion than clarity.
Viewers have to jump between visuals, match colours, and mentally piece things together
Thu 03 Jul 2025 | Rosh Khan
How to Offset Label Position in Tableau
Handling Overlapping Labels in Tableau: A Simple Staggered Approach
When working with bar charts in a tight dashboard layout, labels can easily become cluttered. Long labels or a high number of bars often lead to overlapping text, which makes the visual harder to read and less effective
Thu 03 Jul 2025 | Birthe Claussen
Sheets as Tabs in Tableau Public
Sometimes you don’t want to publish whole dashboards in Tableau Public, but a workboot with several sheets displayed as tabs above.
If you upload your workbook (only sheets, no dashboard) to Tableau Public it will display just the sheet you were currently working on
Wed 02 Jul 2025 | Elizabeth Archer
What are non-equi joins and how to use them in Tableau Prep
There are many instances in which you will need to join tables together and most of the time you this will be when one or more fields equal each other. However, there are some use cases for conducting non-equi joins. This is where we join data on a relationship that is inequal to the other
Wed 02 Jul 2025 | Younes Ghouini
Down, But Not Out: Fill Down in Tableau Prep
If you've ever worked with messy Excel files that have missing values, Fill Down in Tableau Prep can be a real time-saver.
Wed 02 Jul 2025 | Zainul Abedin Natha
Mastering the Pivot: How to Reshape Your Data in Tableau Prep Like a Pro (Even If You're a Beginner)
Have you ever opened a dataset and realised it’s just not in the shape you need for your analysis? Maybe you have months as column headers, or survey questions stacked in rows. In Tableau Prep, one of the most powerful and beginner-friendly ways to fix this is by using the Pivot step
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