Tech Skills
Data Analytics & Business Intelligence
Excel, SQL, Power BI, Tableau — turn raw data into business decisions
Skills in this topic
7 skills — Sign in to track your progress
Data Literacy
beginner
Write SELECT queries with JOIN and GROUP BY
Excel & Spreadsheets
beginner
Build a dynamic dashboard with pivot tables and slicers
SQL Analytics
intermediate
Write window functions (ROW_NUMBER, LAG, LEAD)
BI Tools
intermediate
Build an interactive dashboard from a SQL source
Python for Data
intermediate
Clean and transform a messy dataset with pandas
Data Storytelling
intermediate
Build a stakeholder dashboard with a narrative structure
ML for Analytics
advanced
Build a churn prediction model

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Career Shift Toward Data Science: What Professionals Need to Know
The professionals standing out today are not the ones working the longest hours, but the ones who ask the right questions and find answers… Continue reading on

Dev.to · Taocarts
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Cross-Border Statistical Report Excel Batch Export Feature Development: Multi-Currency, Multi-Business Data Formatting Export Solution
When financial and operations personnel use the backend of cross-border purchasing agents or...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Why Are Working Professionals in Mysore Learning New Data Skills?-IABAC
A few years ago, many working professionals believed that learning new technical skills was something only fresh graduates needed to do… Continue reading on Med
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Data Engineering: The Invisible Superpower Behind Every Data-Driven Company
Data Engineering: The Invisible Superpower Behind Every Data-Driven Company Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What Analyzing Travel Data Taught Me Before I Even Finished the Project
I didn’t plan to write about this project until it was done. Continue reading on Medium »

Hackernoon
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Beyond Real-Time: Why Event Processing Needs a Full Analytics Rethink
Complex Event Processing (CEP) is great at detecting patterns in real time, but detection alone doesn't create business value. Organizations also need context,

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
You’ve probably heard of the t-test. It’s the darling of intro stats courses, the go-to for ‘I have two groups and I want to compare them.’… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
You’ve probably heard of the t-test. It’s the darling of intro stats courses, the go-to for ‘I have two groups and I want to compare them.’… Continue reading on

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
You’ve probably heard of the t-test. It’s the darling of intro stats courses, the go-to for ‘I have two groups and I want to compare them.’… Continue reading on
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Beyond One-Click Approval: Building Multi-Step Data Product Governance on Snowflake
Modern data platforms are getting serious about governed data sharing . Snowflake's Internal Marketplace lets you publish data products once and let teams acros

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Use AI for Data Analysis without Coding?
Data analysis used to mean hours in SQL or struggling with Python. That’s not the case anymore. I’ve been testing AI tools for data… Continue reading on Medium

Dev.to · Vivek Kumar
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Embedding Live Charts in Your App Without a Full BI Tool
You don't need Tableau or a $50k BI platform to show your users live charts. Here's how to wire SQL queries directly to charts in your app, fast.

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
From Raw CSV to Executive Decisions: Building a Complete Retail Analytics Pipeline
A practical walkthrough of turning 10,000 retail transactions into actionable business strategy using Python, PostgreSQL, machine learning… Continue reading on

Medium · DevOps
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
LKRN: an OpenTelemetry-native lakehouse format, in Rust
Built for Lakerunner, the lakehouse engine behind Cardinal. Measured against Parquet + DuckDB and Vortex on 1.46M real log rows. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Ketika 1 dari 3 Pelanggan Pergi: Menganalisis Customer Churn PhoneNow dengan Python & Power BI
Bagaimana saya mengubah data mentah menjadi insight bisnis yang actionable menjadi sebuah end-to-end analytics project. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What It Takes to Become an Apache SeaTunnel Committer: Doyeon Kim’s Story
Do you remember the young contributor from South Korea whom we featured last year? Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Sentiment Analysis: Understanding the Data and Defining the Modeling Strategy
Last week, we explored why sentiment analysis matters and how machine learning automates the process of understanding customer opinions at… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Pandas Explained for Backend Engineers: Cleaning Real Data Before It Touches a Model
By Amit Agarwal · medium.com/@amit.agarwal0422 Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
From Goldsmiths to Modern Money
Long before modern banks existed, people stored their gold with trusted goldsmiths. Continue reading on Medium »

Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Data Governance: Focus on What Is Essential
Data Governance, Unfiltered. | Part 2 of 7 Continue reading on Data Governance, Unfiltered »

Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What Is Health Informatics and Why Should You Care?
Most people have never heard of Health Informatics. But it affects every single time you walk into a hospital. Continue reading on Medium »

Medium · JavaScript
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What Is Health Informatics and Why Should You Care?
Most people have never heard of Health Informatics. But it affects every single time you walk into a hospital. Continue reading on Medium »
Reddit r/datascience
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Data Directors - what’s your next step?
For anyone who has had a director of data or data director title in the past - where are you now? Similar role at a different company? Same role? Eventually C s

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Analyze A/B Test Results: Beyond the Dashboard
Learn why dashboard metrics alone can mislead your A/B test analysis. Discover how to verify results across multiple data sources… Continue reading on Medium »
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Jitterbit at Gartner Application Innovation Summit
Jitterbit at Gartner Application Innovation Summit Jitterbit - a data integration and automation platform - has been presenting at the Gartner Application Innov
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Além da Ditação: Como Extrair Inteligência Real de Conversas a partir de Áudio em Segundos
No ecossistema de dados moderno, o áudio está em todo lugar. Gravamos ligações de suporte ao cliente, reuniões de vendas, sessões de… Continue reading on Medium

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What Merging Three Global Datasets Taught Me About Data Quality
When I started this project, I expected the most difficult part to be analyzing the relationship between energy consumption and… Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
I graduated as a mechanical engineer.
An honest account of pivoting careers, learning on the job, and finding your place in the data world. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Explorando uma década do arXiv com Python e SQL Server
Esse projeto/estudo surgiu como uma maneira para aprofundar meus conhecimentos em modelagem de dados, focando principalmente em trabalhar… Continue reading on M

Dev.to · Atlas Scada
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The dashboard said everything was fine — a field lesson in honest data
Every dashboard you build makes an implicit promise: the number on the screen is true right now....

Dev.to · Akhila Chanubala
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Building a Public Clinical Trial Data Quality Observatory with Python
Public clinical trial data is valuable, but it is not always analytics-ready. An API response can be...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Become a Data Engineer in 2026
The exact skills, free and paid resources, and books to go from zero to hired. Continue reading on Towards Data Engineering »

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Become a Data Engineer in 2026
The exact skills, free and paid resources, and books to go from zero to hired. Continue reading on Towards Data Engineering »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Various sources of Data
What are the sources of the datas or facts Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Various sources of Data
What are the sources of the datas or facts Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
What 541,000 E-Commerce Transactions Actually Look Like When You Clean Them
Most tutorials hand you clean data. This one didn’t. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Kurumsal Verinin Omurgası: SAS Nedir, Ne İçin Vardır ve Nasıl Çalışır?
Veri dünyasına kıyısından köşesinden bulaştıysanız ya da büyük şirketlerin iş ilanlarına göz gezdirdiyseniz, karşınıza mutlaka o üç harfli… Continue reading on
Techpoint Africa
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Kenya’s plan to monetise citizen data sparks privacy debate despite government assurances
The Kenyan government is considering plans to make up to 1,000 anonymised datasets available for commercial use over the next five years.

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Best Monitor Setup for Machine Learning in 2026: Dual Monitors vs Ultrawide vs Triple Screens
Final Verdict: What Monitor Setup Should AI Developers Actually Buy, Based on Their Workflow Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The 3 Schema Drift Handling Philosophies I Found After Reading Years of Data Engineering Debates
If schema drift had a correct answer, the debate would have ended years ago. Instead, experienced data engineers continue to defend three… Continue reading on D

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Truth About Overfitting in Trading Models (Most People Miss This)
Why Most “Profitable” Trading Strategies Are Just Well-Disguised Illusions Continue reading on InsiderFinance Wire »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Decoding Coca-Cola’s “Black Book”: The Data Science Behind a Consistent Bottle of Orange Juice
Inside the 2013–2016 optimization architecture that mathematically conquered agricultural chaos. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Politics of Data
The strange journey from SQL queries to budget battles, performance reviews, and competing versions of the truth Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Data Segmentation for A/B Tests: Finding Hidden Winners
Discover how to uncover segment-level insights hidden within overall A/B test results. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Learning Databricks Taught Me the Value of Asking Better Questions
Why curiosity has become one of the most important skills in my learning journey Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
10 free playlists that
actually build job-ready skills
Recruiters don’t care how many courses you’ve completed. They care what you’ve built. Continue reading on Medium »
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Your Churn Threshold Is a Pricing Decision
How unit economics should set your classification cutoff, and why they rarely do. The post Your Churn Threshold Is a Pricing Decision appeared first on Towards

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How I Rebuilt My Confidence and Started a Career in Data Science at Sky States
If someone had told me a few years ago that I’d be learning Python, analyzing datasets, and interviewing for Business Intelligence Analyst… Continue reading on
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