Tech Skills

Data Analytics & Business Intelligence

Excel, SQL, Power BI, Tableau — turn raw data into business decisions

16,827
lessons
Skills in this topic
View full skill map →
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
All Reads (7,357) Articles (3025)Blog Posts (3427)Tutorials (370)Research Papers (39)News (496)
Coût réel d’un appel vocal en production : 12 mois de données et 6 erreurs à corriger
Dev.to · lidychic 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Coût réel d’un appel vocal en production : 12 mois de données et 6 erreurs à corriger
En mars 2024, notre plateforme d’agents vocaux a traité 1 200 000 appels en Suisse romande, et la...
Why Data Science Is One of the Most Important Skills of the Digital Age
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Why Data Science Is One of the Most Important Skills of the Digital Age
The modern world runs on information, but raw data alone has little value. Its true power lies in interpretation. Continue reading on Medium »
How Data Science Training Improves Employability in the IT Industry
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
How Data Science Training Improves Employability in the IT Industry
The contemporary world of IT has become highly dependent on data. In order to know customers better, increase productivity, and make the… Continue reading on Me
SQL Subqueries Explained with Real Interview Examples | SQL Interview Series #2
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
SQL Subqueries Explained with Real Interview Examples | SQL Interview Series #2
Master SQL subqueries with simple explanations, practical examples, and interview-focused questions every developer should know. Continue reading on Medium »
Data Science Course With Placement Bangalore: Why Companies Are Hiring More Data Scientists Than…
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Data Science Course With Placement Bangalore: Why Companies Are Hiring More Data Scientists Than…
In the digital age, data is one of the most valuable assets for businesses today. All those clicks, purchases, social media interactions… Continue reading on Me
Science Backs Femtech, So Why Can't The Infrastructure Keep Up?
Forbes Innovation 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Science Backs Femtech, So Why Can't The Infrastructure Keep Up?
Women-specific conditions have historically generated far less structured data than those taken from men.
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Data Science Training Program with placement guarantee
VyTCDC offers the best Data Science courses with a placement guarantee Ideal for working professionals and students looking to enhance… Continue reading on Medi
The hardest part of a pre-release game tracker isn't the UI, it's the provenance field
Dev.to · Mark 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
The hardest part of a pre-release game tracker isn't the UI, it's the provenance field
I started sketching a small reference page for a game that hasn't launched yet, and the first schema...
I rebuilt a bank’s credit-risk function on 1.35M
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
I rebuilt a bank’s credit-risk function on 1.35M
Three times I went looking for what could go wrong. Three times it was hiding behind a number that looked completely fine. Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Kickstart Your Career with Data Science Training in Bangalore
In today’s digital world, data has become one of the most valuable assets for businesses. Organizations across industries use data science… Continue reading on
Master Data Science & Generative AI at IDSA Janakpuri!
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
Master Data Science & Generative AI at IDSA Janakpuri!
 Elevate your career with the Institute of Data Science & Analytics (IDSA), Janakpuri — Delhi’s trusted destination for Data Science and… Continue reading on M
A Simple but Compelling Use Case for Conda
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
A Simple but Compelling Use Case for Conda
UV is great, and I use it most of the time, but sometimes Conda is more convenient Continue reading on Data Visualization, Data Science and Python »
Probabilistic Outcome Prediction with Poisson Regression and Monte Carlo Methods
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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 »
Stop Trusting Every Data Point: The Case for a Data Reliability Index
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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
Why Power BI with AI Has Become the Most In-Demand Skill for Data Analysts in 2026
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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 5d 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 5d 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 5d 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
I build the scrapers the data vendors run on, and I need to tell you what you are actually paying for
Dev.to · George Kioko 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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...
Modeling Supply Chain Evidence: Condition, Asset, and Custody Data Schemas for IoT Hardware
Dev.to · applekoiot 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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 5d ago
Why Statistics is Important in Data Science
Introduction: The Silent Foundation of Data Science Continue reading on Medium »
Does This Have AI in It Yet?
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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 »
Foundation First : Why Poor Data Quality Silently Destroys Enterprise AI, Analytics, and System…
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d 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
Web Scraping with Python in 2026: Best Libraries and Anti-Bot Strategies
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...
How Wisconsin Used Foxes And Deer To Revamp Science Education
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.
Python for Data Science — Probability Basics for Data Science
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 »
Python for Data Science — Probability Basics for Data Science
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 »
Everything I Learned About Power BI From Zero to Actually Understanding DAX
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....
The Survivorship Bias in Your Funnel Data: Why Drop-Off Analysis Misses the Point
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
I Gave OpenCode Access to the Entire US Economy. It Took One Skill File
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
How to Screen Thousands of Stocks Without a Data Provider
Dev.to · Ken-Mutisya 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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,...
The Attention Economy: Your Attention Is Worth More Than Gold
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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 6d 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 6d 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 »
CRM Analitiği ile Müşteri Değerini Anlamak: RFM, CLTV ve Predictive CLTV Rehberi
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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 »
O que as startups ensinam sobre Marketing Analytics
Medium · Startup 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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 »
Article on Modelling, Joins, Relationships and Different Schemas In Power BI
Dev.to · WaithakaJoseph 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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...
The Data Engineering Tool You “Must Learn” Changes Every Week. That Should Tell You Something.
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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 »
The HiPPO is always right
Dev.to · Sharmin Sirajudeen 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
How to Extract Saudi Arabia Property Data Across Bayut.sa, Wasalt.sa, Aqar.fm and PropertyFinder.sa
Dev.to · Omar Eldeeb 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
Norway vs France (1:4) — A 97% Crime Index Anomaly: When Ruthless Efficiency Buries the xG Evidence
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
How to Build an H-1B Salary Database by Employer (the Real Data Source + Python)
Dev.to · Omar Eldeeb 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
Understat xG Data Export: How to Pull Expected Goals Programmatically (Python + CSV)
Dev.to · Omar Eldeeb 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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,
What changed since the last scrape? A small change-detection layer (stdlib only)
Dev.to · Vinicius Pereira 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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...
Navigating Power BI : Joins, Relationships ,Schemas and Dashboards Explained.
Dev.to · Nancy Mutwii 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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...
The Identity Dilemma: My Reflection on What It Means to Be a Data Analyst
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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
Is There a Way to Structure, Pipe and Manage Data Better?
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6d 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