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 · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
We Built a Live World Cup 2026 Dashboard in Markdown
104 matches, 48 nations, one trophy. Continue reading on Medium »

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
The Complete SQL Roadmap for 2026: From First Query to Job-Ready
SQL turned 50 this year. It is still the single most requested skill on every data analyst job posting — and the roadmap to mastering it… Continue reading on Me

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
A/B Testing Statistics: P-Values, Confidence Intervals, and What They Actually Mean
Demystify A/B testing statistics — p-values, confidence intervals, Type I and Type II errors, and one-tail vs two-tail tests explained in… Continue reading on M
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
Day 1 of My Data Science Journey: Building the Foundation
Today marks the beginning of my six‑month Data Science internship. For me, this isn’t just another training program — it’s the start of a… Continue reading on M

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
Garbage In, Garbage Out: Why AI Depends on Clean Data
Artificial Intelligence is changing the way we live, work, and make decisions. It recommends the movies we watch, assists doctors in… Continue reading on Medium

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
Understanding NetCDF: The Data Format Behind Climate and Satellite Science
A beginner-friendly guide to the scientific file format behind climate science, remote sensing, hydrology, and Earth observation. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6d ago
The Skill That Separates Senior Data Scientists From Everyone Else
Sebastian Wernicke on communication, stakeholder resistance, and why data alone rarely changes minds. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Biotech Translation Gap: Where Clinical Success, Capital, and Unmet Need Diverge
The biotech market is often described as one long funnel: science enters at one end, clinical trials test whether it works, investors fund… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Centers: Balancing Perspectives in Local Political Debates
The current debate suffers from a basic analytical flaw. Continue reading on Medium »
The Register
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Microsoft to assist European Commission in defense of EU-US data-sharing agreement
Court says Redmond can file briefs, take part in hearings amid challenge to the current path Big Tech's data spice uses to legally flow

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Solving the E-Commerce Fit Problem: My First End-to-End DataOps Pipeline
If you have ever ordered a shirt online only to find out it fits like a tent, you know the frustration of e-commerce sizing. But for… Continue reading on Medium
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I Completed Five Years in Analytics Consulting: 5 Lessons That Changed How I Work
The tools I use for analytics and reporting have changed more than I expected, yet my questions for any analytics project haven't moved much. The post I Complet

Dev.to · David Maina
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
From Zero to Spreadsheet: My Honest First Experience with Microsoft Excel
A beginner's journey through cells, formulas, and a few accidental disasters When someone first...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Apache Spark Joins Explained: Everything You Need to Know About Strategies, Types, Execution Plans…
Joins are one of the most computation heavy and expensive operations in data processing systems. While joins are common in traditional… Continue reading on Medi

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Um Pipeline para uma ONG: Transformei Dados do Instagram Em Recomendações
Tem projetos que surgem de uma necessidade técnica. Esse surgiu de uma conversa. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Who Finances the World?
A Practical Guide to Global Capital, Debt Markets and Financial Systems Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Unlock the Future with Data Science + Gen AI!
Looking to master the most in‑demand skills of today? Join Lonestar Academy Janakpuri’s Data Science with Generative AI course and gain… Continue reading on Med

MIT Technology Review
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Download: metric weaknesses and AI elephant warnings
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. The inevitable weaknes

Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What Will It Cost America To Meet Data Center Electricity Demand?
Meeting data center electricity demand with fossil fuels will add $30 billion to annual electricity costs. Clean energy will cost $5 billion less.

Dev.to · Audrine Marion
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why Hypothesis Testing is the Backbone of Data Science
From A/B testing and machine learning to business intelligence and scientific research, hypothesis...

Dev.to · Ryan Murunga
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Modelling in Power Bi
INTRODUCTION Power Bi is a comprehensive business analytic tool developed by microsoft. Power Bi is...

Dev.to · Danson Kuria
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Relationship Schemas and Joins in Power BI
A popular BI software named Power BI comes handy when you’re looking to scrutinize data from various...

Dev.to · Hamza Khan
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
SmiteTracker: A Free Platform to Track SMITE Match History, Ranked Stats, and Player Performance
SMITE is a competitive multiplayer game where every match provides an opportunity to learn, improve,...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The AI Revolution That Won’t Fire Your Data Analysts
Photo by path digital on Unsplash Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Quality & dbt : Automatiser la gouvernance avec Python (Partie 2/5)
Série : Data Quality Engineering à l’échelle . Partie 1 : Le Framework (De la théorie au code dbt) — lien ici . Partie 2 : L’Ingénierie… Continue reading on M

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Airflow vs. Dagster (2026): Which Data Orchestrator Should Your Team Choose?
The ultimate Airflow vs. Dagster Comparison Continue reading on Medium »

Dev.to · Fanuel Awidhi
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
From Tables to Insights: Understanding Data Modelling, Joins, Relationships and Data Schemas
Data Modelling is both an art and science because we are constantly trying to shape data so that the...

Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Graph Databases: The Backbone of Connected Data and Intelligent AI
Every second, the world generates relationships — a customer buys a product, a device talks to another device, a transaction touches three… Continue reading on

Dev.to · circobit
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Extraire des Tableaux Financiers : Actions, ETF et Données de Marché
Les sites financiers sont des mines d'or de données tabulaires. Cours d'actions, compositions d'ETF,...

Dev.to · beefed.ai
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Scalable Star Schema Design for Modern Data Warehouses
Step-by-step guide to designing star schemas that scale: facts, dimensions, SCDs, surrogate keys, and performance best practices.

Dev.to · Maina kelvin
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Modeling, Joins, Relationships, and Different Schemas in Power BI
Power BI is often sold on its visuals, sleek charts, interactive dashboards, and drill-throughs. But...

Dev.to · Manveer Chawla
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
When to denormalize, when to join: A ClickHouse guide (2026)
Denormalization has been the standard approach to analytical data modeling for good reason. Moving...

Dev.to · Mary Ngure
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
PowerBI; Relationships, Schemas & Dashboards
When I started learning Power BI, I thought dashboards were mostly about choosing the right...

Dev.to · Gabriel Mbuva
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Power BI: Modelling, Schemas, Joins and Relationships
Power BI is a data visualization and business intelligence tool designed for business professionals...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Alteryx to Python Migration: I Built an Open-Source Package to Replace Alteryx
How PyTeryx lets you migrate from Alteryx Designer to Pandas without losing your mind Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why One Regression Model Isn’t Enough: Understanding Geographically Weighted Regression (GWR)…
“One of The biggest mistake in spatial data analysis is assuming that every place behaves the same.” Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Top 10 Databricks Use Cases Across Industries
Most teams that adopt Databricks don’t do it for a feature. The databricks use cases that actually matter are the ones that fix a real… Continue reading on Medi

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
DARI DATA MENJADI PENERIMAAN NEGARA: Integrasi Big Data Nasional sebagai Strategi Perluasan Basis…
Ketika perang dagang Amerika Serikat dan Tiongkok kembali memanas pada awal 2025, gelombang kejutnya terasa hingga ke negara-negara… Continue reading on Medium

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Easily Remove Duplicate Records Using Power Query(.pbix included)
When working with large datasets, duplicate records can quickly become a headache. They inflate file sizes, distort analysis, and lead to… Continue reading on M

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Easily Remove Duplicate Records Using Power Query(.pbix included)
When working with large datasets, duplicate records can quickly become a headache. They inflate file sizes, distort analysis, and lead to… Continue reading on M
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
You Want to Study Rare Disasters, but They Almost Never Happen.
You need to know how often a rare catastrophe strikes, but it is so rare you would wait a lifetime to see enough of them. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
DuckDB Isn’t Just Fast. It Changes How You Think About Data.
Stop building data pipelines around databases. Start bringing the database to your data. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Building an End-to-End Geospatial Data Pipeline with Python
From Raw CSV Files to an Analysis-Ready Map Dataset Continue reading on iTech Publication »
ArXiv cs.AI
📊 Data Analytics & Business Intelligence
📄 Paper
⚡ AI Lesson
1w ago
The Remittance Blueprint: Data-driven Intelligence for Sri Lanka
arXiv:2606.28190v1 Announce Type: cross Abstract: This study analyzes Sri Lankan migration and remittances over 32 years (1994-2025). Using a 384-month harmoniz
Reddit r/MachineLearning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Double-Blind submission in single-blind tracks [D]
Hi everyone. First-time reviewer for data mining venues here. For the applied tracks in ICDM and KDD, the CFP states submissions should be single-blind, showing

Dev.to · Kingsong
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I timed stair carries on my commute ? the spreadsheet column mobility apps skip
I log commutes in a spreadsheet because mobility apps smooth over the ugly legs. Last week I added a...

Dev.to · Vinicius Fagundes
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your p-value answered a question you didn't ask.
You ran the A/B test. It came back p = 0.08. "Not significant." So you killed the feature and moved...
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Skill AI untuk Analisis Data yang Mulai Banyak Dicari Perusahaan
Pemanfaatan Artificial Intelligence (AI) dalam dunia kerja terus meningkat, termasuk untuk kebutuhan analisis data. Continue reading on Medium »
DeepCamp AI