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 · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I’m a Data Analyst. Here’s the Plan I Made When I Realized My Job Was Changing.
The 5 things worth building that automation can’t replace — and how you can start this week. Continue reading on Data Science Collective »
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
SQL Text Sorting With Collations
Text sorting can feel small until two databases give different answers for the same text. Reports can place uppercase names ahead of… Continue reading on Medium
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
When Your Chart Lies to You: The Truth Behind Histograms and KDE
What every beginner data analyst needs to understand before trusting any distribution plot. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
When Your Chart Lies to You: The Truth Behind Histograms and KDE
What every beginner data analyst needs to understand before trusting any distribution plot. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why CDP Fails Without Executive Alignment? ( Audio version included)
In today’s data-driven business landscape, many companies invest in a CDP (Customer Data Platform) expecting better customer insights… Continue reading on Mediu
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How an Altered Gaming Habit Could Save a Life
How Live-Service Telemetry Can Solve the Modern Isolation Epidemic Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your Pandas Code Is Slow: 20 Optimization Techniques for Processing Millions of Rows Faster
Most Pandas bottlenecks aren’t caused by large datasets — they’re caused by a handful of expensive coding patterns. Continue reading on Data Science Collective
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your Pandas Code Is Slow: 20 Optimization Techniques for Processing Millions of Rows Faster
Most Pandas bottlenecks aren’t caused by large datasets — they’re caused by a handful of expensive coding patterns. Continue reading on Data Science Collective
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your Pandas Code Is Slow: 20 Optimization Techniques for Processing Millions of Rows Faster
Most Pandas bottlenecks aren’t caused by large datasets — they’re caused by a handful of expensive coding patterns. Continue reading on Data Science Collective
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Math That Runs Every Database
Every SQL query you’ve ever written is secretly a chain of mathematical operations. Here’s the system hiding underneath it. Continue reading on Science Spectrum
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
This Project Made Me More Serious About Building Things People Can Trust
The longer I worked on it, the less I cared about impressiveness and the more I cared about whether the system felt worth relying on. Continue reading on Medium
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
️♂️Data Gathering by Any Means
“Data is the new oil,” the quote says. But in reality, it may be far more valuable than oil, because oil is still measured in fiat… Continue reading on Medium »
Semi Analysis
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
US Grid Constraints: Towards 40GW+ of Behind-The-Meter Datacenter by 2028?
Why the Grid Can't Keep Up, and Why that Drives Behind-The-Meter 50%+ of DCs/Year By 2028
Dev.to · Parsify.tools
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How to Stream & Flatten 1GB+ JSON to CSV in the Browser Without Memory Leaks
As developers, data engineers, or analysts, we’ve all been there: you download a massive database...
Reddit r/datascience
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Dev Log on Steam Recommender (part 2)
Since the steam sale is live I wanted to post a Dev log on my personal project <a href="https:/
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
WIPRO LAB AT GALGOTIAS
Wipro Centre of Excellence at Galgotias University Continue reading on Medium »
Dev.to · Seenivasan A
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Power BI
In today's data-driven world, organizations collect large amounts of data every day. However, raw...
Dev.to · Vikas Maheshwari
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Star Schema vs Snowflake Schema: Which to Use and When
Star schema vs snowflake schema comes down to one decision — whether you normalize your dimensions. Here's the difference, a worked example, and why the star us
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Beyond Dashboards: Testing Business Hypotheses Through KPI Trees & Diagnostic Analytics
A step-by-step investigation of customer experience using KPI decomposition, diagnostic analytics, and root cause thinking Continue reading on Code Like A Girl
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Julius AI vs ChatGPT for Data Analysis: I Tested Both for a Month (2026)
Julius AI vs ChatGPT for Data Analysis: I Tested Both for a Month (2026) I've been burnt by "revolutionary" data tools before. So when I decided to pit Julius A
Dev.to · Arunkarthick K
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Day 1 of My Microsoft Fabric Learning Journey – Exploring Lakehouses
Today I started my Microsoft Fabric learning journey using the 60-day trial, and my first topic was...
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Beyond the Straight Line: Choosing Between OLS, Interaction Terms, and Tweedie Regression
Whether you should stick to a classic Ordinary Least Squares regression, introduce interaction terms, or pivot to a Tweedie distribution depends entirely on how
Dev.to · TickDistill
📊 Data Analytics & Business Intelligence
📄 Paper
⚡ AI Lesson
1w ago
Sigma-Normalization: Why Order-Flow Signals Should Be Measured in Standard Deviations, Not Raw Numbers
Sigma-Normalization: Why Order-Flow Signals Should Be Measured in Standard Deviations, Not...
Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Running The Numbers On Rising Retail Crime
As analytics tools have gotten more sophisticated, so has loss prevention teams’ understanding of the landscape and the strategies ORC groups favor.
Dev.to · NexGenData
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Asian Market Data Scrapers for Public Business Research
Ask any Western fund manager what their best source is for Bombay Stock Exchange equities, Hong Kong...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
A Data Science approach to Fleet Preventative Maintenance
A common barrier in data science projects is the perceived need for deep domain expertise before you can start building. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Do dado público ao produto analítico: como construí um pipeline reprodutível para o Anuário…
Um projeto aberto que conecta engenharia de dados, qualidade, estatística, documentação e visualização para transformar publicações anuais… Continue reading on
Dev.to · member_ce2645ea
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I Tracked My Body Fat for 90 Days and Built a Calculator That Actually Makes Sense
For three months, I weighed myself every morning and took body measurements every Sunday. I used a...
Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why Sequoia And A16z Paid $40 Million For A Plumbing Dispatch Seat
One startup pays cleaners to film your kitchen while another gets paid to run plumbing dispatch. Both are chasing the data the physical world never uploaded.
Dev.to · circobit
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
De Tabela HTML a INSERT SQL em Um Clique
Você encontrou dados em um site. Precisa deles no seu banco de dados. O fluxo geralmente envolve:...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I Spent Three Months Looking for an Edge in Prediction Markets. Here’s What Actually Survived.
A systematic research arc on weather-based Kalshi contracts: confident hypothesis, humbling null result, narrow surviving edge. Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The 7 Data Science Skills Employers Care About More Than Degrees
7 Data Science Skills That Matter More Than a Degree A few months ago, I came across a post from a young man in Pakistan who was… Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The 7 Data Science Skills Employers Care About More Than Degrees
7 Data Science Skills That Matter More Than a Degree A few months ago, I came across a post from a young man in Pakistan who was… Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Complete Data Science Roadmap for 2026 (From Zero to Job-Ready)
Everything you need to learn, in the right order, with no fluff — your step-by-step guide to becoming a data scientist this year. Continue reading on Medium »
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Complete Data Science Roadmap for 2026 (From Zero to Job-Ready)
Everything you need to learn, in the right order, with no fluff — your step-by-step guide to becoming a data scientist this year. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Complete Data Science Roadmap for 2026 (From Zero to Job-Ready)
Everything you need to learn, in the right order, with no fluff — your step-by-step guide to becoming a data scientist this year. Continue reading on Medium »
Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I built a score that’s allowed to fall. That’s a reason to trust it.
Last time I showed you a lift on my own site. Two dates, three numbers, the floor and where it sits today. Continue reading on CLEO by RegenAI »
Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The $15 Billion Pothole: Why Cities Can't Afford To Dodge Street Maintenance
Most transportation professionals understand the cost curve; the hurdle is a lack of high-fidelity data to act on it.
Dev.to · Krunal Kanojiya
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your Data Engineering Learning Path: 2026 Edition
Data engineering in 2026 is not what it was three years ago. The job has expanded. Modern data...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Complete Guide to Data Science Training in 2026
Looking for the best software training institute in Chennai? Join our Data Science Course in Chennai and master Python, Machine Learning… Continue reading on Me
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Website | Free Demo | Download Brochure | Complete Guide
Every business today generates enormous amounts of data. From website visits and customer purchases to social media engagement and… Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What Everybody Ought to Know About Iterator functions in Power BI
A Simple Solution for Your Most Complex DAX Problems. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Web Scraping Mistake That Kept Getting My Python Script Blocked
When I first started learning web scraping, I thought success was simple. Continue reading on Stackademic »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science Training with Placement Assistance: Build a Future-Ready Career with Quality Thought
In today’s technology-driven world, Data Science has become one of the most sought-after career paths for students and professionals alike… Continue reading on
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science Training with Placement Assistance: Build a Future-Ready Career with Quality Thought
In today’s technology-driven world, Data Science has become one of the most sought-after career paths for students and professionals alike… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Factory That Doesn’t Know What It’s Making Next
Ludhiana is widely regarded as India’s dominant woollen knitwear hub. Most of its 14,000 manufacturing units still decide what to produce… Continue reading on M
Dev.to · Alex Bell
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Goldman Sachs IB Associates Score 39.7 Out of 100. The Data Explains Why.
Goldman Sachs Investment Banking is supposed to be the hardest finance interview. The data says...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Science with Gen AI — IDSA Janakpuri
Unlock your future with the Data Science with Gen AI Course at the Institute of Data Science and Analytics (IDSA), Janakpuri. Learn Python… Continue reading on
DeepCamp AI