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
Showing 718 reads from curated sources

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
From Notebook to pip install: A Packaging Guide for Data Scientists
Most DS projects die in notebooks. Not because the work is bad. Because the output is untransferable. Here is how to fix that. Continue reading on Write A Catal

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Why Your Fast Query Suddenly Got Slow: Storage & Retrieval Made Simple
Your app feels fast. Then one day a tiny feature lands, traffic rises, and one endpoint goes from 90ms to 1.4s. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Dual-Track Student: Balancing a Master’s Degree with Competitive Exam Prep
We’ve all heard that pursuing a Master’s degree is a full-time commitment. But what happens when your career ambitions require you to run… Continue reading on M
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
How To Produce Ultra-Compact Vector Graphic Plots With Orthogonal Distance Fitting
Generate high-quality, minimal SVG plots by fitting Bézier curves with an ODF algorithm. The post How To Produce Ultra-Compact Vector Graphic Plots With Orthogo
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
When Environmental Data Becomes Financial Infrastructure
What the ISSB’s Nature Disclosure Shift Really Means Continue reading on Medium »

Dev.to · NARESH-CN2
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Bypassing the "Pandas RAM Tax": Building a Zero-Copy CSV Extractor in C
The Convenience Penalty Python is a masterpiece of productivity, but for high-volume data ingestion,...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Question Behind the Question: What Stakeholders Actually Want When They Ask for Data
The most important analyst skill isn’t SQL. It’s learning to hear what people aren’t saying. Continue reading on Stackademic »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Best Data Analytics Course Hyderabad — Learn How Data Drives Real Business Decisions
Master the fundamentals of data with a practical data analytics course Hyderabad. Learn how to collect, analyze, and visualize data using… Continue reading on M
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Analisi del periodo – breve guida
L’analisi del periodo serve a capire come sono collegate tra loro le proposizioni in una frase complessa. In pratica, si studia il rapporto tra le varie frasi c

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
How Predictive Analytics Helps Companies Make Better Decisions
In today’s fast-paced digital landscape, businesses are constantly seeking ways to stay ahead of the competition. One of the most powerful… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Experiment Evaluation in Practice: A Simple A/B Testing Example
A data-driven analysis of reminders and incentives Continue reading on Medium »

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Understanding the Importance of a Global Research and Outsourcing Firm for Business Growth
Organizations are increasingly using data-driven insights to keep up with the current business environment, which is rapidly changing. A… Continue reading on Me

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Memory Efficiency at Scale: Python Generators & Iterators
Stop crashing your servers! Learn how to use Python's yield keyword to process millions of rows with nearly zero RAM usage. Continue reading on Python in Plain
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
O que é Estatística? Um guia para iniciantes
Estatística é uma palavra que muita gente já ouviu, mas poucas realmente entendem o impacto que ela tem no nosso dia a dia. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Cara Jago Sertifikasi BNSP Data Science: Bedah Transparansi Model dengan Explainable AI (XAI)
oleh Aditiya Widodo Putra, Data Scientist & Mathematics Expert Continue reading on Medium »

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Cara Jago Sertifikasi BNSP Data Science: Bedah Transparansi Model dengan Explainable AI (XAI)
oleh Aditiya Widodo Putra, Data Scientist & Mathematics Expert Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
- …
Every morning, I used to check IPO news like most beginners do — scrolling through headlines, reading summaries, and trying to keep up. Continue reading on Medi

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Modernizando a Gestão de Resíduos: O uso do Power BI no novo Boletim Interativo do Sistema MTR
A Transformação do Boletim Anual do Sistema MTR-RJ em uma Ferramenta de Business Intelligence. Continue reading on Medium »
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Range Over Depth: A Reflection on the Role of the Data Generalist
What has changed in the past five years in the role and importance of generalists in data teams The post Range Over Depth: A Reflection on the Role of the Data
Medium · Startup
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
How to Calculate MRR, Churn, and LTV in PostgreSQL
Every SaaS founder eventually hits the same wall. Payments are flowing, subscriptions are growing, and your billing provider’s dashboard… Continue reading on Me

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Unlocking Insights of Vehicle CO2 Emissions Using Python
In today’s data-driven world, understanding environmental impact through data analysis is a powerful skill. In this project, I explored a… Continue reading on M

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Unlocking Insights of Vehicle CO2 Emissions Using Python
In today’s data-driven world, understanding environmental impact through data analysis is a powerful skill. In this project, I explored a… Continue reading on M

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Data Center Conversation We Can’t Ignore
Introduction: The Invisible Backbone of the Digital World Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Retirement Funds as Systems: Where Member Value Gets Diluted
Why insight, governance, and operational execution do not always align in practice Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
You May Have Perfect Backups and Still Lose Everything
Backup Best Practices for Data You Cannot Afford to Lose Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
This is How Yearly Comparative Column Charts should be in Power BI(.pbix included)
When it comes to visualizing yearly performance, column charts in Power BI are one of the most effective tools. They allow analysts… Continue reading on Power B

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
This is How Yearly Comparative Column Charts should be in Power BI(.pbix included)
When it comes to visualizing yearly performance, column charts in Power BI are one of the most effective tools. They allow analysts… Continue reading on Power B
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
A Satisfação do Cliente Não é um Mistério. É uma Equação.
Como um modelo interpretável de IA revelou os fatores que controlam o NPS — e superou XGBoost, CatBoost e Random Forest no processo. Continue reading on Medium

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Snowflake and Streamlit: A Single Connection Pattern for Seamless Local and Cloud Execution
One of the most practical challenges when building data applications is ensuring that the same codebase runs consistently across… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The One-Hour Future: A Theory They Don’t Want You to Notice
This is a strange discovery Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Building Is Cheap. Knowing What to Build Isn’t
Reflections on building tools at the boundary of math, software, and understanding Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Beyond the Dashboard: Why Domain Intelligence is the New Front Line in Fraud Detection
I’ve spent the better part of my 30s staring at data. In my ten years in the analytics trenches, I’ve seen the same story play out a… Continue reading on Medium
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
New EV Sales Are Slowing = Charging Crisis? The Real Opportunity Hidden in the Data
The ‘Real Charging Demand’ Obscured by Media Headlines Continue reading on Medium »

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Death of the Dashboard: Why I’m Finally Trading My SQL Queries for Conversations
I’ve spent the last decade of my life in the “trenches” of data. I’m 35 now, and if I’m honest, I’ve spent a good chunk of those years… Continue reading on Medi

Dev.to · Alex Waiganjo
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Practical SQL Concepts
Introduction In today's world data driven world, data is becoming more valuable in that it...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Protocolo de Síntesis v1.0.0: El Framework para la Toma de Decisiones y Síntesis de Inteligencia
Introducción Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Systems Thinking for Research
Continue reading on Operations Research Bit »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
“I Have Read and Agree to the Terms” Is Now the Biggest Lie We Tell Ourselves on the Web
Do you know why you don’t bother reading the privacy agreements on your smart devices? Continue reading on Medium »

Dev.to · Shadrack Tesot
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Building a School Database from Scratch: A Practical Introduction to SQL
Building a school database from scratch There’s a certain kind of satisfaction that comes...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
From Complaints to Intelligence: How Data Reveals Nigeria’s Waste Management Crisis
Introduction Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Python Cheatsheet Every Data Scientist Wishes They’d Had on Day One
Every term is explained in plain English. Every snippet you’ll actually use. Bookmark this — you’ll come back. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The 1,000 Repository Milestone - The Power of Sharding
In the world of Big Data, the instinct is usually to build a bigger “bucket” — a massive SQL database or a monolithic Data Lake. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Speed isn’t the problem. I analysed 4,472 quick commerce reviews to find out what is.
About the project: Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The Complete Guide to Python Data Visualization Libraries
Python has become the go-to language for data visualization, and for good reason. Its ecosystem offers a tool for every situation, whether… Continue reading on

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
I Built an F1 Race Intelligence Dashboard — Here’s Everything I Learned
From GPS telemetry to spring-physics cameras, AI race engineers to voice commentary — the story of turning raw Formula 1 data into a… Continue reading on Medium

Dev.to · Sharon-nyabuto
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Applying SQL Concepts: DDL, DML, Filtering, and Data Transformation
Structured Query Language (SQL) is the standard language used to interact with relational databases....

Dev.to · Zawadi Mwikali
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Unpacking the language of data: DDL, DML, Filtering and Transformation.
📌 DDL vs DML In SQL, commands are broadly divided into two categories: DDL (Data...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
*177* The Structural Discontinuity 2/3 Inactivation of Life:
When Interpretation Replaces Observation Continue reading on Medium »
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