PowerBI Friday Project Complete

Jun 27, 2025 Mandy Wan | www.thedataschool.co.uk

Hi all! After another busy week of training, DS52 were asked to put their newly attained PowerBI skills into practice in the Friday project.

Friday Project Power Bi Report - Financial Complaints

Jun 27, 2025 Younes Ghouini | www.thedataschool.co.uk

Overview:

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Can you create this seemingly simple line chart

Jun 27, 2025 Donna Coles | donnacoles.home.blog

Lorna set this week’s #WOW2025 challenge asking us to recreate what looked to be a simple line and area chart combination. I have to admit this was indeed a bit tricksy. I built out the data relatively quickly, but when trying to create the area c...

WorkoutWednesday,WOW2025,AreaChart,DualAxis,INDEX,Line,parameter,Path,Rank,TableCalcs,Week26,WindowSum

Three alternative DAX calculations

Jun 26, 2025 Joseph Darton | www.thedataschool.co.uk

DAX stands for Data Analysis Expressions and is the language used by PowerBI to create calculations. The syntax is quite different to SQL and involves a lot of brackets and commas.

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Tableau vs. Power BI Nach- und Vorteile auf beiden Seiten

Jun 26, 2025 Stephan Christner | www.thedataschool.co.uk

Welche Vor- und Nachteile gibt es und welches Programm sollte man nutzen?

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

SQL Murder Mystery Walk Through

Jun 26, 2025 Brandon Traditi | www.thedataschool.co.uk

SQL can be one of those coding languages that is fun to explore and manipulate data by querying different databases and tables. In this tutorial I will walk you through the SQL Murder Mystery game that can be found here.

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

How to use custom date formatting to improve time series charts in Tableau

Jun 26, 2025 Stosh Sawicz | www.thedataschool.co.uk

When making time series graphs, it can sometimes be difficult to get your axes or headers to look how you want them to look. When left to their default configurations, Tableau often gives us a vertical header or odd tick marks. In some extreme cas...

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Dungeons and Dragons in Tableau Character Sheet and Dice Rolls

Jun 26, 2025 Miles Cumiskey | www.thedataschool.co.uk

I am an avid Tabletop Gamer, but in all my years of playing I have only gotten one Dungeons and Dragons character to level 20. Ouroboros (lovingly nicknamed ‘Oreos’) brought me to the end of a several year long adventure, and I wanted to commemora...

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Sorting Out Success The Data Laundry Cycle

Jun 26, 2025 Garrett Sauls | interworks.com

If you’ve been following InterWorks over the years, you know we love a good metaphor for data and analytics concepts. Our newest metaphor might just be our freshest one yet. We call it the Data Laundry Cycle. I’ll give a quick explanation of how i...

Data,datacleaning,datatransformationransformation,datawarehouse,ETL

From Dashboards to Data Apps Sigma vs. Tableau vs. Power BI

Jun 26, 2025 Wesley Cannatti | interworks.com

BI Crossroads and the Current State of the Industry For years, the business intelligence (BI) industry has promised self-service analytics, democratized insights and agile decision-making. But most organizations are still stuck in the same old loo...

Data,PowerBI,Sigma,Tableau

What did it take to get into DS52

Jun 25, 2025 Robbin Vernooij | www.thedataschool.co.uk

We’ve had the pleasure of welcoming six amazingly talented people to our team three weeks ago and they’re well ahead in turning into great consultants. A perfect time to look at what it took for them to get in!

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Understanding Filter Context in Power BI

Jun 25, 2025 Jaden Matthias | www.thedataschool.co.uk

How ALL, ALLEXCEPT and REMOVEFILTERS help you control filter context

Data,Challenges,data,DataGovernance,howto

SWITCH - An alternative to IF functions in Alteryx

Jun 25, 2025 Hannah Norfolk | www.thedataschool.co.uk

I found myself in the position where I wanted to convert a list of written numbers (ie. one, two, three…) into a numerical digit (1,2,3…).

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Buttons and Bookmarks in Power BI - Beginners Edition

Jun 25, 2025 Zainul Abedin Natha | www.thedataschool.co.uk

🎯 What Are Buttons in Power BI?

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

How to Make a Pop-Up Warning Message in Tableau

Jun 25, 2025 Eric Parker | onenumber.biz

Do you want a warning message to pop up in Tableau when there is no data or a user makes an invalid selection? Look no further, we’ve got the solution for you!

LayoutContainers,TableauDashboards,TableauGeneralKnowledge

Tabelle in Alteryx transponieren

Jun 24, 2025 Svetlana Brazukevich | www.thedataschool.co.uk

Tabelle Transponieren

Data,Challenges,data,DataGovernance,howto

Automatische Datenbereinigung mit Power Query in Power BI

Jun 24, 2025 Stella-Sophie Bukowski | www.thedataschool.co.uk

Mit Power BI können mehrere gleich strukturierte Dateien aus einem Ordner automatisch eingelesen, zusammengeführt und nach einem einheitlichen Schema bereinigt werden. Wird eine neue Datei im Ordner abgelegt, durchläuft diese dieselben Bereinigung...

Data,Challenges,data,DataGovernance,howto

Mastering Data Initiatives Project Management Secrets for Success

Jun 24, 2025 Nayeem Ahmed | interworks.com

The landscape of project management is evolving rapidly, and nowhere is this more evident than in the data and business intelligence space. As organizations increasingly recognize data as a strategic asset, the role of project managers in this dom...

Data,AI,projectmanagement,ProofofConcept

Sets in Tableau Explained What and Why

Jun 23, 2025 Tyler McKillop | www.thedataschool.co.uk

What are Sets

Data,Challenges,data,DataGovernance,howto

Input multiple file using a Wildcard input in Alteryx

Jun 23, 2025 Agnes Amer | www.thedataschool.co.uk

Need to bring multiple files into Alteryx?

Data,Challenges,data,DataGovernance,howto

How to select a parameter value on a chart without everything greying out

Jun 23, 2025 Kieran Joymungul | www.thedataschool.co.uk

You can change your parameter value by selecting a part of your chart, but usually it greys out so how do we fix this to make interactivity more seamless?

Data,Challenges,data,DataGovernance,howto

Mastering Data Governance Common Challenges

Jun 23, 2025 Brooks Barth | interworks.com

Now that we’ve laid out the framework for what strong Data Governance strategies look like and the steps to achieve them, let’s round out this series by briefly going over a few common challenges you’re likely to face when you embark on your data ...

Data,Challenges,data,DataGovernance,howto

Four Cool New Features in Tableau 2025.2 Part 1

Jun 23, 2025 Ken Flerlage (noreply@blogger.com) | www.flerlagetwins.com

 In June, Tableau released the latestversions of their platforms (with the exception of Server, which is now on atwice annual release cycle) and there is a ton of new stuff!!Lots of it involves Tableau Next and Pulse, but there are also some nicea...

How-To,SeriesNewFeaturesinTableau2025.2,Tableau

How To Create Football Pitch Zones In Tableau Using Polygons

Jun 22, 2025 Louis Phipps | www.thedataschool.co.uk

When do we use zones?

Can you make a dynamically highlighting tooltip

Jun 21, 2025 Donna Coles | donnacoles.home.blog

For #WOW2025 Week 25, Kyle challenged us to make use of Set Actions to recreate a viz where the ‘viz in tooltip’ updates based on the option the user interacts with on the base viz. Modelling the data The excel file provided contained 3 sheets whi...

WorkoutWednesday,WOW2025,BarChart,DashboardActions,ScatterPlot,SetActions,Sets,VIT,VizinTooltip,Week25

To The Point The Python tool in Alteryx

Jun 20, 2025 Jeffrey Brian Thompson | www.thedataschool.co.uk

The Python tool in Alteryx allows use Python on your data - with all the freedom that comes along with it - as long as you output a Pandas DataFrame. I will assume a basic understanding of Python for this blog.

Data,analytics,DataApps,datavisualization,Sigma

Simple explanation of LODs

Jun 20, 2025 David Gandary | www.thedataschool.co.uk

When working with data in Tableau, there often comes a moment where standard aggregations aren’t enough. That’s where Level of Detail (LOD) expressions come into play. In this blog post, I’ll walk through a simple use case and show you exactly how...

Data,analytics,DataApps,datavisualization,Sigma

Presentation Tips for Showcasing Your Dashboard Like a Pro

Jun 20, 2025 Kristupas Justas Jucaitis | www.thedataschool.co.uk

You’ve built a beautiful, insightful dashboard — now it’s time to present it to your stakeholders. But even the best-designed dashboards can fall flat if not communicated well. Presenting a dashboard is about more than walking through charts — it’...

Data,analytics,DataApps,datavisualization,Sigma

Power BI Dateiordner richtig anbinden und Daten automatisiert laden

Jun 20, 2025 Gabriela Scherbinek | www.thedataschool.co.uk

Power BI ist ein praktisches Tool zur Visualisierung und Analyse von Daten. Wer aber regelmäßig mit Excel-Dateien arbeitet, kennt das Problem: Immer wieder neue Dateien manuell hochladen kostet Zeit und ist fehleranfällig.

Data,analytics,DataApps,datavisualization,Sigma

Overlaying Shot Locations on a Heatmap in Tableau

Jun 20, 2025 Ollie Ross Russell | www.thedataschool.co.uk

A workaround when dual axes aren’t playing nice

Data,analytics,DataApps,datavisualization,Sigma

Multi-Row Formula Tool in Alteryx

Jun 20, 2025 Harry Caplin | www.thedataschool.co.uk

The Multi-Row Formula Tool is a powerful yet sometimes overlooked feature that allows users to perform calculations across multiple rows of data with reference to positional features, opening the door to more complex, dynamic analysis.Excel is a c...

Data,analytics,DataApps,datavisualization,Sigma

Moving Measures Across Tables in Power BI

Jun 20, 2025 Hannah Norfolk | www.thedataschool.co.uk

I often fall victim to creating a measure in Power BI only to find it’s in the wrong table. I then have to annoyingly remove the measure from the model, select the table I actually want the measure to sit in and re-write the measure.

Data,analytics,DataApps,datavisualization,Sigma

How to create a radial bar chart in Tableau

Jun 20, 2025 Kieran Joymungul | www.thedataschool.co.uk

We must first map out the coordinates of the path the bars will run along. To achieve this we must add a “path” field to the dataset we’re working on where every row has the minimum and maximum degrees you want your radial chart to run along e.g...

Data,analytics,DataApps,datavisualization,Sigma

Designing for Storytelling How to Build a Tableau Dashboard That Tells a...

Jun 20, 2025 Kristupas Justas Jucaitis | www.thedataschool.co.uk

Start with the Story You Want to Tell

Data,analytics,DataApps,datavisualization,Sigma

Changing Parameters With Buttons In Tableau

Jun 20, 2025 Louis Phipps | www.thedataschool.co.uk

There are many use cases why you would want to use a change parameter action within a dashboard. In our particular case we want to be able to click on a premier league football club and see their corresponding statistics.

Data,analytics,DataApps,datavisualization,Sigma

The 2025 Gartner Magic Quadrant What They Got Right and Whats Next

Jun 20, 2025 Mat Hughes | interworks.com

Happy Analytics and BI Platform Magic Quadrant release to all who celebrate. Usually when these reports drop, I feel like I’m reading last year’s news today. But this time, Gartner made genuinely astute observations about where this market is head...

Data,AI,Cube,Databricks,dbt,Gartner,MagicQuadrant,PowerBI,Sigma,Snowflake,Tableau,ThoughtSpot

Mastering Data Governance Building a Framework for Success

Jun 20, 2025 Justin Lemmon | interworks.com

Now that we’ve helped define and contextualize data governance in our previous blog post, let’s go over some steps we can take to ensure success. This time, instead of Maslow’s Hierarchy of Needs, we’re going to build from the bottom up as if we’r...

Data

How to Create a Butterfly Chart in Tableau

Jun 19, 2025 Stella-Sophie Bukowski | www.thedataschool.co.uk

A butterfly chart is an effective way of comparing two sets of data side by side. For example, it can be used to compare values from two different years. In this example, we will use a butterfly chart to compare store sales across various categori...

Data,analytics,DataApps,datavisualization,Sigma

Creating Navigation Landing Pages in Tableau

Jun 19, 2025 Ollie Ross Russell | www.thedataschool.co.uk

When building multi-page dashboards in Tableau, clear and intuitive navigation is essential. Whether you’re switching between pages or directing users to explore specific views, having a well-designed landing page makes the user experience signifi...

Data,analytics,DataApps,datavisualization,Sigma

Sparklines in Power BI Tiny Charts Big Impact

Jun 18, 2025 Younes Ghouini | www.thedataschool.co.uk

Let me introduce you to a very cool feature in Power BI called Sparklines. These little guys let you add mini line charts inside a matrix table.

Data,analytics,DataApps,datavisualization,Sigma

Project Management 101

Jun 18, 2025 Zainul Abedin Natha | www.thedataschool.co.uk

In today’s data-driven world, clients don’t just want beautiful dashboards — they want insightful, accurate, and user-friendly tools that help them make smarter decisions. If you’re leading a Tableau Prep and dashboard project for a client, your r...

Data,analytics,DataApps,datavisualization,Sigma

Preppin Data in Power Query

Jun 18, 2025 Elizabeth Archer | www.thedataschool.co.uk

It is week 3 of The Data School and we have just been introduced to Power BI and Power Query! Here I will take you through how to do Week 1 2022 of Preppin’ Data challenges in Power Query. If you are new to Power Query, then this blog is for you!

Data,analytics,DataApps,datavisualization,Sigma

How to be a good Project Manager

Jun 18, 2025 Joseph Darton | www.thedataschool.co.uk

As a Project Manager, it is your responsibility to ensure your team works together in a cohesive manner to produce a high quality piece of work. With such a short time to produce deliverables for the client, efficiency is key. Below are some key t...

Excalidraw A Data Schoolers Best Friend

Jun 18, 2025 Mandy Wan | www.thedataschool.co.uk

One tool that anybody interested in data analytics will find invaluable is Excalidraw. Excalidraw is basically a virtual whiteboard where you can create diagrams and collaborate with others in real-time. It’s pretty user-friendly with plenty of ke...

Crosstab Tool in Alteryx

Jun 18, 2025 Harry Caplin | www.thedataschool.co.uk

Whether you’re transforming rows into columns, aggregating values, or preparing data for visualization, the Crosstab Tool offers a simple yet powerful way to pivot your dataset. In this blog, I’ll explore how the Crosstab Tool fits into the Altery...

Data,analytics,DataApps,datavisualization,Sigma