Tech Skills

Data Analytics & Business Intelligence

Excel, SQL, Power BI, Tableau — turn raw data into business decisions

16,860
lessons
Skills in this topic
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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
All Reads (7,388) Articles (3045)Blog Posts (3432)Tutorials (375)Research Papers (39)News (497)
From Intuition to Algorithm: How We “Tamed” Production Time Estimates at Mecasys s.r.o.
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2w ago
From Intuition to Algorithm: How We “Tamed” Production Time Estimates at Mecasys s.r.o.
Most manufacturing companies today face the same challenge as we do: how to accurately estimate the production time of a component when we… Continue reading on
The Career Shift Toward Data Science: What Professionals Need to Know
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
Why Are Working Professionals in Mysore Learning New Data Skills?-IABAC
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 »
What Analyzing Travel Data Taught Me Before I Even Finished the Project
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 »
Beyond Real-Time: Why Event Processing Needs a Full Analytics Rethink
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,
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
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
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
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
The Z-Test: Statistics Underrated Workhorse (And Why Its Not Just a Worse T-Test)
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
How to Use AI for Data Analysis without Coding?
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
From Raw CSV to Executive Decisions: Building a Complete Retail Analytics Pipeline
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
LKRN: an OpenTelemetry-native lakehouse format, in Rust
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 »
Ketika 1 dari 3 Pelanggan Pergi: Menganalisis Customer Churn PhoneNow dengan Python & Power BI
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 »
What It Takes to Become an Apache SeaTunnel Committer: Doyeon Kim’s Story
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 »
Sentiment Analysis: Understanding the Data and Defining the Modeling Strategy
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 »
From Goldsmiths to Modern Money
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 »
What Is Health Informatics and Why Should You Care?
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
How to Analyze A/B Test Results: Beyond the Dashboard
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 »
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
What Merging Three Global Datasets Taught Me About Data Quality
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 »
I graduated as a mechanical engineer.
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 »
Explorando uma década do arXiv com Python e SQL Server
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
How to Become a Data Engineer in 2026
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 · 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 »
What 541,000 E-Commerce Transactions Actually Look Like When You Clean Them
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 »
Kurumsal Verinin Omurgası: SAS Nedir, Ne İçin Vardır ve Nasıl Çalışır?
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.
Best Monitor Setup for Machine Learning in 2026: Dual Monitors vs Ultrawide vs Triple Screens
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 »
The 3 Schema Drift Handling Philosophies I Found After Reading Years of Data Engineering Debates
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
The Truth About Overfitting in Trading Models (Most People Miss This)
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 »
Decoding Coca-Cola’s “Black Book”: The Data Science Behind a Consistent Bottle of Orange Juice
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 »
The Politics of Data
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 »
Data Segmentation for A/B Tests: Finding Hidden Winners
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 »
10 free playlists that
actually build job-ready skills
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 »
How I Rebuilt My Confidence and Started a Career in Data Science at Sky States
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
How I Rebuilt My Confidence and Started a Career in Data Science at Sky States
Medium · DevOps 📊 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
How I Rebuilt My Confidence and Started a Career in Data Science at Sky States
Medium · Cybersecurity 📊 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
Reddit r/datascience 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2w ago
Identity crisis - A Generalist Dilemma
Hi folks, I have a query about my identity as a Data Scientist. I started working in data science back in 2017 and have contributed to projects across engineeri
Data Leaders Don't Defend Anymore—They Deliver
Forbes Innovation 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2w ago
Data Leaders Don't Defend Anymore—They Deliver
The job has stopped being about supporting IT delivery and started being about owning business outcomes that happen to need data and AI to work.
Why Data Science Is Emerging as a Career-Enabling Skill in Bhubaneswar
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3w ago
Why Data Science Is Emerging as a Career-Enabling Skill in Bhubaneswar
The modern job market increasingly rewards professionals who can combine domain expertise with analytical thinking. As organizations… Continue reading on Medium
How Data Science Is Helping Organizations Build a Culture of Better Decisions
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3w ago
How Data Science Is Helping Organizations Build a Culture of Better Decisions
In today’s competitive business environment, organizations are constantly looking for ways to make smarter and faster decisions. Continue reading on Medium »
Why Data Science Careers Are Thriving in Indore
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3w ago
Why Data Science Careers Are Thriving in Indore
The demand for data professionals is growing rapidly across India, and Indore is emerging as a promising destination for aspiring data… Continue reading on Medi
Engineering a Retail Analytics Engine: Transforming 260K+ Transaction Records into Consumer…
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3w ago
Engineering a Retail Analytics Engine: Transforming 260K+ Transaction Records into Consumer…
How an algorithmic deep-dive into messy supermarket logs shattered core retail assumptions and isolated high-value growth levers. Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3w ago
SQL Skills Every Data Analyst Should Learn in 2026
SQL (Structured Query Language) is one of the most important skills for Data Analysts. Almost every organization stores data in databases… Continue reading on M