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
4d ago
Probabilistic Outcome Prediction with Poisson Regression and Monte Carlo Methods
An empirical evaluation using the 2026 FIFA World Cup as a live case study Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Stop Trusting Every Data Point: The Case for a Data Reliability Index
The replication crisis and AI fragility both stem from the same architectural flaw. Here is how to build a type-safe standard for reality. Continue reading on T

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Why Power BI with AI Has Become the Most In-Demand Skill for Data Analysts in 2026
What if you could turn thousands of rows of raw data into powerful business insights within minutes? Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Data Analytics Training in Chandigarh
Data Analytics Training in Chandigarh: Build a Successful Career with Data Skills Continue reading on Medium »
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
What are the real-world applications of data science?
Businesses across every industry generate huge amounts of data every day. From online shopping and digital payments to healthcare records and social media activ
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
How to Start a Career in Data Science in 2026: A Complete Beginner’s Guide
Data Science continues to be one of the fastest-growing and highest-paying career fields in 2026. Organizations across healthcare, finance… Continue reading on

Dev.to · George Kioko
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
I build the scrapers the data vendors run on, and I need to tell you what you are actually paying for
I have built the scraping guts behind more "real time business intelligence" products than I would...

Dev.to · applekoiot
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Modeling Supply Chain Evidence: Condition, Asset, and Custody Data Schemas for IoT Hardware
How to structure IoT sensor output into three evidence dimensions with example data models and API payload schemas.
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Why Statistics is Important in Data Science
Introduction: The Silent Foundation of Data Science Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Does This Have AI in It Yet?
Building an AI-friendly system sometimes doesn’t need some brand-new skill. It needs the old data discipline you already have. Continue reading on Medium »

Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Foundation First : Why Poor Data Quality Silently Destroys Enterprise AI, Analytics, and System…
The Hidden Risk Behind Every AI Investment Continue reading on Medium »
ArXiv cs.AI
📊 Data Analytics & Business Intelligence
📄 Paper
⚡ AI Lesson
5d ago
Towards Inclusive Mobility Modeling: Characterizing and Evaluating Elderly Trajectory Patterns in Urban Systems
arXiv:2606.31207v1 Announce Type: new Abstract: The rapid advance of smart cities increasingly depends on trajectory data mining, yet underrepresented demograph

Dev.to · Etrit Neziri
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Web Scraping with Python in 2026: Best Libraries and Anti-Bot Strategies
Web Scraping with Python in 2026: Best Libraries and Anti-Bot Strategies Web scraping in...

Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How Wisconsin Used Foxes And Deer To Revamp Science Education
Public input identifying over 100 million trail cameras photos of Wisconsin’s animals has transformed science education and state wildlife management.

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Python for Data Science — Probability Basics for Data Science
So far in this Part, we’ve focused on describing data using statistics such as: Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Python for Data Science — Probability Basics for Data Science
So far in this Part, we’ve focused on describing data using statistics such as: Continue reading on Medium »

Dev.to · samwel
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Everything I Learned About Power BI From Zero to Actually Understanding DAX
What Even Is Power BI? Power BI is a data visualization and business intelligence tool by Microsoft....

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Survivorship Bias in Your Funnel Data: Why Drop-Off Analysis Misses the Point
You study users who entered the funnel but ignore those who never started, creating systematically wrong conclusions about where to invest… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
I Gave OpenCode Access to the Entire US Economy. It Took One Skill File
FRED is a free public economic data platform run by the St. Louis Fed, with hundreds of thousands of time series covering a wide range of… Continue reading on M

Dev.to · Ken-Mutisya
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How to Screen Thousands of Stocks Without a Data Provider
Stock screeners feel like something you should have to pay a data vendor for. Market cap, sector,...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Attention Economy: Your Attention Is Worth More Than Gold
The Algorithmic Mining of Human Focus Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
What I Learned Building a Tableau Dashboard for Deloitte’s Data Analytics Simulation
A hands-on look at machine downtime, pay equity, and why “talk to the data” is harder than it sounds. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Six Months, 9,541 Restaurant Development Records, and What the Data Actually Says
Every six months we stop producing data long enough to study it. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
CRM Analitiği ile Müşteri Değerini Anlamak: RFM, CLTV ve Predictive CLTV Rehberi
Veri bilimi yalnızca model kurmak, grafik çizmek veya kod yazmaktan ibaret değildir. Continue reading on Medium »

Medium · Startup
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
O que as startups ensinam sobre Marketing Analytics
Descubra por que entender o modelo de negócio é o primeiro passo para transformar dados em decisões estratégicas. Continue reading on Medium »

Dev.to · WaithakaJoseph
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Article on Modelling, Joins, Relationships and Different Schemas In Power BI
Data Modeling, Relationships, and Schemas in Data Analytics In the fields of data...

Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Data Engineering Tool You “Must Learn” Changes Every Week. That Should Tell You Something.
I’ve worked across the data field long enough to see the pattern — and it has nothing to do with which tool is actually best. Continue reading on Medium »

Dev.to · Sharmin Sirajudeen
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The HiPPO is always right
Why the people running a company can't actually see it — and why traditional analytics keeps producing conclusions nobody ever verifies, from the HiPPO to the A

Dev.to · Omar Eldeeb
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How to Extract Saudi Arabia Property Data Across Bayut.sa, Wasalt.sa, Aqar.fm and PropertyFinder.sa
A practical, verified guide to collecting Saudi Arabia property data from the major portals — including the REGA advertisement-license trick that lets you dedup

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Norway vs France (1:4) — A 97% Crime Index Anomaly: When Ruthless Efficiency Buries the xG Evidence
A statistical deep-dive into how France pulled off a full-blown scoreboard heist despite losing the underlying chance-quality case to… Continue reading on Mediu

Dev.to · Omar Eldeeb
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How to Build an H-1B Salary Database by Employer (the Real Data Source + Python)
A practical guide to querying H-1B salary data by employer and role programmatically, using the authoritative DOL OFLC LCA disclosure files with runnable Python

Dev.to · Omar Eldeeb
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Understat xG Data Export: How to Pull Expected Goals Programmatically (Python + CSV)
A practical, honest guide to Understat xG data export — how the data is embedded in the page, a runnable Python scraper that decodes it, and how to dump league,

Dev.to · Vinicius Pereira
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
What changed since the last scrape? A small change-detection layer (stdlib only)
Most of my scrapers answer one question: what's on the site right now. But that's almost never the...

Dev.to · Nancy Mutwii
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Navigating Power BI : Joins, Relationships ,Schemas and Dashboards Explained.
Introduction Excel works fine when all your data fits in one table but the moment you have...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Identity Dilemma: My Reflection on What It Means to Be a Data Analyst
One question has stayed with me throughout my journey in data, and surprisingly, it has become harder to answer with time rather than… Continue reading on Mediu

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Is There a Way to Structure, Pipe and Manage Data Better?
Organisations lose an average of $12.9 million annually to poor data quality. The tools to fix this have existed for years. The problem is… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Segmentasi Pelanggan dan Prediksi Nilai Belanja pada Online Retail II Menggunakan K-Means dan…
Pendahuluan Bisnis online retail hidup dari transaksi. Namun transaksi mentah belum otomatis memberi arah bisnis. Di dalam satu juta lebih… Continue reading on

Dev.to · Mohammad Meezan
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
My first SQL interaction
Today was my first day of learning SQL and my interaction with it was very unique its not like excel...

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Web Scraping: What It Is, Why It Matters, and How to Use It Responsibly
A practical guide to web scraping: how it works, why businesses use it, where it becomes difficult, and how to approach it responsibly. Continue reading on Medi

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Best Data Science Institute in South Delhi
Start your Data Science career with an Advanced Data Science Course in South Delhi. Learn from industry experts, work on live projects… Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
KPIs That Matter: Choosing Metrics That Drive Business Decisions
One of the biggest mistakes new data analysts make is assuming that every metric is equally important. Continue reading on Medium »

Dev.to · TianYi Zhang
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Build a Box Plot Calculator in Pure JavaScript — No Libraries Needed
Build a Box Plot Calculator in Pure JavaScript — No Libraries Needed A box plot (or...
![The 4th Down Revolution: Why NFL Teams Win 67% More Games When They Trust the Math [Jun 30]](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F2p4zzugzoahk9s13602k.png)
Dev.to · Edge Lab
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The 4th Down Revolution: Why NFL Teams Win 67% More Games When They Trust the Math [Jun 30]
Most NFL head coaches would rather punt on 4th-and-2 from the opponent's 40-yard line than face a...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Understanding Parquet: The File Format Built for Analytics
A beginner-friendly explanation of columnar storage, compression, schemas, and why Parquet is widely used in modern data platforms. Continue reading on Stackade
TechCrunch AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Anthropic’s Claude Science bets on workflow, not a new model, to win over scientists
Anthropic's Claude Science is a workbench that gives scientists one environment to do computational research, saving them from the need to bounce between databa

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »
DeepCamp AI