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 717 reads from curated sources
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Understanding Data Science Beyond the Code
Data science is often misunderstood as a field driven purely by advanced tools, programming languages, and complex algorithms. While tools… Continue reading on
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Study the Monotonicity and Stability of Variables in a Scoring Model using Python
How can you validate that your variables tell a consistent risk? The post How to Study the Monotonicity and Stability of Variables in a Scoring Model using Pyth
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How Confluent Scaled Self-Serve with Conversational Analytics
We built a Curated Context Architecture where high-stakes business questions return the same correct answer every time — across analysts… Continue reading on Me
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Event-Driven vs Scheduled Data Pipelines in 2026: Origins, Real-World Use Cases & Best Architecture Strategy
As organizations become increasingly data-driven in 2026, one of the most important decisions leaders face is how data should move across systems. Should busine
Dev.to · NARESH-CN2
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Fixing Floating-Point Drift While Speeding Up CSV Ingestion (7.75s 2.7s)
The Problem: The Hidden Cost of "Fast" IngestionMost discussions around data pipelines focus strictly...
Dev.to · levent çelik
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Demystifying ROI and CAGR with five JavaScript snippets
Two acronyms cause more confusion in product analytics meetings than any others I know: ROI and CAGR....
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Best Data Science Training in Kozhikode: Shape Your Future with In-Demand Skills
In today’s technology-driven world, data is at the core of innovation and decision-making. Companies across industries depend on data… Continue reading on Mediu
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Best Data Science Training in Kozhikode: Shape Your Future with In-Demand Skills
In today’s technology-driven world, data is at the core of innovation and decision-making. Companies across industries depend on data… Continue reading on Mediu
Dev.to · Rasmus Ros
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
KEncode: Packing Data for Strict Limits
Over the past few years, I found myself occasionally writing the same boilerplate: manually packing...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How Python Eliminates Repetitive Work in Data Analysis (Step-by-Step Guide)
Most data analysis isn’t “analysis.” Continue reading on Medium »
Dev.to · Kushang Tailor
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Hard Way: Lessons Learned from Real-World Data Migration Projects
The Hard Way: Lessons Learned from Real-World Data Migration Projects How three years of...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Databricks Unity Catalog: The Operating System That Automatically Builds Your Business Ontology
Stop building ontology layers for AI — make your data layer the ontology Continue reading on Towards Data Experience »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Silent Market: Why $XRP and $AI are Surging While the World Stops Caring
While retail 「influencers」 scream about the next bull run, the actual data tells a different, much colder story. Continue reading on Medium »
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
AI Just Made the Case for Going Deep
The depth vs. breadth debate has a new variable, and it changes everything. Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The A/B Test Stress-Test Pipeline
How to validate experimental decisions under skewed, fragile, and misleading data. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The A/B Test Stress-Test Pipeline
How to validate experimental decisions under skewed, fragile, and misleading data. Continue reading on Medium »
Dev.to · Iteration Layer
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Extracting Structured Data from Scanned Documents: OCR Plus Field Validation
The Filing Cabinet Problem Every organization has one. A storage room, a shared drive, a...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
THE COSMIC RESONATOR PRINCIPLE: Stellar Interiors, Galactic Architecture, and the Primordial Plasma…
https://doi.org/10.5281/zenodo.19277448 THE COSMIC RESONATOR PRINCIPLE Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
When Markets Panic, Does the News Know First?
A data science investigation into financial news sentiment and stock market volatility. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
When Markets Panic, Does the News Know First?
A data science investigation into financial news sentiment and stock market volatility. Continue reading on Medium »
Dev.to · MJ-O
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Implementing Airflow DAGs: A Beginner-Friendly Guide
INTRODUCTION In data engineering, many tasks need to run automatically, such as extracting...
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
THE DATA PHARAOHSChapter Six: The Men Who Held the World Together
How the Scribal Class of Ancient Egypt Built, Sustained, and Sometimes Destroyed the Most Powerful Information Infrastructure in Human… Continue reading on Leve
Dev.to · Peter
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Map French Company Director Networks: Beyond SIRENE and INPI APIs
How to Map French Company Director Networks: Beyond SIRENE and INPI APIs If you do due...
Dev.to · NARESH-CN2
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Case Study: Reducing Data Ingestion Latency by 96.4% (24.5x Speedup)
Most data pipelines don’t need more infrastructure. They need less overhead. I recently...
Dev.to · Dreez
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Data Preparation in Power BI: Cleaning, Transforming, and Loading Data for Real-World Analytics
Introduction Before any dashboard delivers value, there’s a quiet but critical phase every...
Dev.to · Kevin Meneses González
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How I Automated My Investment Research With 50 Lines of Python
The Problem: Too Much Noise, Not Enough Signal A while ago, my daily investment routine...
Dev.to · Peter
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to Monitor Austrian Insolvencies Without a Government License
How to Monitor Austrian Insolvencies Without a Government License Austrian corporate...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Real Skill Isn’t Python It’s Knowing the Right Libraries
Most people think they’re getting better at Python. Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The 80/20 Principle In Data Science
Data science has become one of the most valuable functions in modern companies. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The 80/20 Principle In Data Science
Data science has become one of the most valuable functions in modern companies. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How Does a Data Scientist’s Salary Grow with Experience?
Data science has quickly become one of the most rewarding career paths in today’s tech-driven world. But one of the biggest questions… Continue reading on Mediu
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Worldmonitor: Because Apparently My Brain Needed a Bloomberg Terminal for Civilizational Anxiety
An open-source dashboard that turns news, markets, geopolitics, AI, webcams, prediction markets, and infrastructure risk into one… Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Why Do Interpretation Layers Accumulate Over Time?
Knowledge is often perceived as a stable output — something that can be produced, verified, and preserved. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Why NDVI doesn’t follow logistic growth?
Logistic growth is widely used to describe population dynamics. So it seems natural to compare it with NDVI based vegetation curves. Continue reading on Medium
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Analyst’s Mindset: Navigating Scientific Research and Personal Branding Amidst Conflict-Induced…
The pursuit of scientific rigor within the context of active conflict and forced displacement represents one of the most profound… Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Analyst’s Mindset: Navigating Scientific Research and Personal Branding Amidst Conflict-Induced…
The pursuit of scientific rigor within the context of active conflict and forced displacement represents one of the most profound… Continue reading on Medium »
Dev.to · Pulsebit News Sentiment API
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Your Pipeline Is 15.2h Behind: Catching World Sentiment Leads with Pulsebit
Your Pipeline Is 15.2h Behind: Catching World Sentiment Leads with Pulsebit We recently...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Factors Contributing to High Survival Rate in Titanic
I used titanic.csv dataset from Stanford. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Why I Built a Digital Twin for HVAC Systems Nobody Talks About
Most innovations in building technology don't arrive with a press release or a viral thread. They start quietly — usually with an engineer… Continue reading on
Dev.to · komugi
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
How to track net worth across USD and JPY for US-Japan couples in 2026
A practical Excel system for US-Japan couples to track multi-currency net worth, FX swings, and dual-country retirement goals.
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
LOST IN THE FOURTH DIMENSION
WELCOME TO THE YEAR 2912: A Survivalist’s Guide to the Spaceship Titanic Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
From Clustering to Forecasting: A Full-Season Data-Driven Look at the 2023 F1 Season
Decoding driving style and lap-time prediction across all 22 races, 22 drivers, and 21,279 laps. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
From Clustering to Forecasting: A Full-Season Data-Driven Look at the 2023 F1 Season
Decoding driving style and lap-time prediction across all 22 races, 22 drivers, and 21,279 laps. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Building a Self-Healing Data Pipeline Framework for Enterprise Reliability
How Autonomous Systems Can Eliminate Broken Pipelines, Stale Dashboards, and Midnight On-Call Incidents Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Learn the Data Science Workflow and Tell the Story of Your Skills
Free course link: https://data-science.thinkific.com/products/courses/data-science Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Learn the Data Science Workflow and Tell the Story of Your Skills
Free course link: https://data-science.thinkific.com/products/courses/data-science Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
The Marketing Mix Modelling: A Quick Guide to Marketing Mix Modeling (MMM)
Legendary retailer John Wanamaker once famously said: “Half the money I spend on advertising is wasted; the trouble is I don’t know which… Continue reading on M
Dev.to · Pulsebit News Sentiment API
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2w ago
Your Pipeline Is 27.0h Behind: Catching Inflation Sentiment Leads with Pulsebit
Your Pipeline Is 27.0h Behind: Catching Inflation Sentiment Leads with Pulsebit We...
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