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
1w ago
From Hunch to Backtest
Understanding a trick isn’t the same as having it. This is the story of how we turned an intuition into a written strategy, ran it against… Continue reading on
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Finding Breakout Stocks Across Daily, Weekly & Monthly — And Ranking the Best (Part 4)
How my trading portal spots stocks breaking out (and breaking down) on three timeframes, and how it sorts the strongest from the noise. Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Cleaning and Translation Hell: The 2,000-Recipe Disaster: Why Data Cleaning is the Ultimate AI…
I thought AI coding would make building my app a breeze. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
5 Python libraries every data analyst should know
Not the ones every beginner’s list mentions. The ones that actually show up in real analysis work — with the one-liner that makes each… Continue reading on Medi
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
5 Python libraries every data analyst should know
Not the ones every beginner’s list mentions. The ones that actually show up in real analysis work — with the one-liner that makes each… Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
−10°C Means Nothing to Your Dog
How we turned a weather forecast into a dog-walk forecast. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Instrument, the Wu-Hausman Test, and the Wardrobe
How to build the perfect instrument, run the perfect test, and end up exactly where you started Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Kafka Connect: Setting up and what the Docs skip
The Three Kafka Topics Running Your Connect Cluster and Why You Should Create Them Yourself Continue reading on Towards Data Engineering »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Smart Enough to Be Wrong Forever
Intelligence doesn’t guarantee better choices—it often makes better excuses Continue reading on The Quantastic Journal »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Advanced Exploratory Data Analysis (EDA) with Plotly, Streamlit and OpenAI
Create dynamic charts that allow deeper exploration and interpretability of the data using the combination of Pandas, Plotly and OpenAI Continue reading on TDS
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Power BI vs Tableau: Which Is Better in 2026?Power BI vs Tableau: Which Is Better in 2026?
Power BI and Tableau are two of the most widely used business intelligence tools in 2026, and both are excellent for turning raw data into… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Which Is the Best Data Analytics Course in Delhi for Beginners?
In today’s technology-driven world, data has become one of the most valuable assets for every business. Whether it’s a website, mobile… Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science Institute in Delhi: Your Gateway to a Successful Career in Data Science
Data Science Institute in Delhi: Your Gateway to a Successful Career in Data Science Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Analytics Course in Pitampura | DICS Innovatives
Join Data Analytics Course in Pitampura at DICS Innovatives. Learn Excel, SQL, Power BI, Python, and Tableau with expert trainers and… Continue reading on Mediu
Reddit r/webdev
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I built an open-source desktop SQL workspace for PostgreSQL, MySQL/MariaDB, SQLite and 12+ more databases like DuckDB, ClickHouse, Redis and Firestore.
<img src="https://preview.redd.it/c8585fwl8s9h1.gif?width=640&crop=smart&s=269281d2ae98def515007318977d2947ca629910" alt="I built an open-source desktop
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
10 Data Ingestion Optimization Techniques for Faster and Scalable Processing
High-performance ingestion strategies that reduce latency and scale data processing efficiently Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
10 Data Ingestion Optimization Techniques for Faster and Scalable Processing
High-performance ingestion strategies that reduce latency and scale data processing efficiently Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science training in Electronic City Bangalore — Python, ML, Deep Learning, Tableau.
Details & Registration: https://www.emexotechnologies.com/courses/data-science-certification-training-course/ Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science
Data Science has become one of the most influential and rapidly growing fields in the digital era. Organizations across industries rely on… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Decoding the Sky: A Network Analysis of the U.S. Air Traffic Control System
Have you ever wondered how air traffic flows so smoothly across a massive country like the United States? Behind the thousands of flights… Continue reading on M
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Decoding the Sky: A Network Analysis of the U.S. Air Traffic Control System
Have you ever wondered how air traffic flows so smoothly across a massive country like the United States? Behind the thousands of flights… Continue reading on M
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What Averages Don’t Tell You About JNPT Congestion: 0.23
A data driven perspective of JNPT congestion from 13th Jun to 26th Jun 2026: A Day at the port is far less polite than a year! Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
10 Forecasting Techniques Essential for Optimizing Inventory in Fast Fashion and E-Commerce
Demand forecasting methods that improve inventory decisions across fast-moving retail environments Continue reading on Medium »
Medium · Deep Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
10 Forecasting Techniques Essential for Optimizing Inventory in Fast Fashion and E-Commerce
Demand forecasting methods that improve inventory decisions across fast-moving retail environments Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How to build custom functions on Google Sheets
In this article, we are going to explore how to build your custom functions on Google Sheets, much like Excel VBA, but easier. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The $2.5B Black Box: Programmatic Auditing of the MLC Unmatched Pool
In the music industry, streaming payouts represent a labyrinth of copyrights. When a user hits play on Spotify, Apple Music, or Tidal, the… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
A Roundabout Puzzle: Can 12 Roads Be Made Safer?
Roundabouts are useful for avoiding the delay of traffic lights, but they also come with a higher risk of accidents. To measure this risk… Continue reading on M
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Apache Spark Mastery (Part 6 of 6): Interview Prep & Reference
The whole series in one place — to revise from, and to walk into interviews with. Continue reading on Medium »
Medium · SEO
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Almost Every Analytics Tool Offers a Proxy to Beat Ad Blockers. Most Are a Time Bomb.
I built a web analytics proxy and have watched ad-blocker filter lists closely for years, so I keep meeting the same quiet problem: a team… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The 7 Most Impactful Use Cases for Real Estate Data Scraping in 2026
7 real estate scraping workflows for 2026: price monitoring, rental dedup, valuation comps, change detection with schemas and pipeline… Continue reading on Towa
Medium · Deep Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Pandas Explained: The Library That Made Data Analysis Easy
Python and NumPy are excellent for numerical computation. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Stop Writing Messy Pandas Code: A Deep Dive Into .Pipe()
Level up your ETL (Extract, Transform, Load) skill Continue reading on Level Up Coding »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
A Bayesian World Cup 2026 Predictor
Predicting goals, not winners — and keeping an honest scoreboard of how often it’s right. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Redesigning the Data Science Org for the AI Era
A shifts Data Science from headcount-based roles to product-maturity roles to build trustworthy systems. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Stats_with_FirstPrinciples 01: How Randomness and Uncertainty give bith to Probability?
“Statistics doesn’t begin with probability. It begins with uncertainty.” Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Apache Spark Mastery (Part 5 of 6): Going to Production
Where a notebook experiment becomes a pipeline you can trust. Continue reading on Medium »
Medium · RAG
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Seasonality-Aware Log Anomaly Detection
Replacing hand-tuned static thresholds with a self-calibrating, per-pattern, time-of-day-aware alerting pipeline — using percentiles, a… Continue reading on Med
Medium · Deep Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
ARCO-Mars: A Unified Archive of Mars Atmospheric Data
For the past few months, my feed mentions new developments in the space of AI, particularly focused on Earth system modeling and Planetary… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science Journey
After almost a decade working across academia and industry in data science, I’ve learned a few lessons worth sharing. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Python for Data Science — Mini Project: Visual Storytelling with Data
Throughout this section, we’ve learned how to create and interpret different types of visualizations: Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Python for Data Science — Mini Project: Visual Storytelling with Data
Throughout this section, we’ve learned how to create and interpret different types of visualizations: Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
My Oasis Infobyte Data Analytics Internship Experience
During my internship as a Data Analytics Intern at Oasis Infobyte (OIBSIP), I gained valuable hands-on experience by working on real-world… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
My Data Science & AI/ML Internship Preparation Notes — Part 5
Data Visualization with Matplotlib and Seaborn Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
My Data Science & AI/ML Internship Preparation Notes — Part 5
Data Visualization with Matplotlib and Seaborn Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Polars: Tried for the speed, stayed for the API
Beyond the 100x speed hype: Why the real power of Polars lies in how it changes the way you write data pipelines. Continue reading on Data And Beyond »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Polars: Tried for the speed, stayed for the API
Beyond the 100x speed hype: Why the real power of Polars lies in how it changes the way you write data pipelines. Continue reading on Data And Beyond »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
7 Developer Skills That Became More Valuable Than Coding
What clients and companies actually notice Continue reading on Python in Plain English »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What Building for Europe Taught Us About Modern Data Infrastructure
When people talk about modern data platforms, the conversation usually revolves around performance, scalability, and AI readiness. Continue reading on Medium »
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