Tech Skills

Data Analytics & Business Intelligence

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

9,913
lessons
Skills in this topic
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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 718 reads from curated sources

How I Built a System That Turns Raw Sales Data Into Business Decisions in A Day
Dev.to · Sai Sarvaja Boominathan 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How I Built a System That Turns Raw Sales Data Into Business Decisions in A Day
Most companies I've talked to have the same problem. They collect sales data religiously — every...
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Data Matters in Small-Scale Industrial Systems
You do not need a data science team or a six-figure analytics platform. You need a spreadsheet and the discipline to fill it. Continue reading on Medium »
Keep pushing, Keep fixing, Keep learning to handling uncertainity
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Keep pushing, Keep fixing, Keep learning to handling uncertainity
Only working framework for moving through uncertainty Continue reading on Data Box »
10 Data Science Problems Every Retailer Wants Solved (And How to Frame Them)
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
10 Data Science Problems Every Retailer Wants Solved (And How to Frame Them)
Part 9 of “The Retail Data Playbook” Continue reading on Medium »
Python for Data Science — Defensive Coding for Noisy Data
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Python for Data Science — Defensive Coding for Noisy Data
If you’ve only worked with clean tutorial datasets, Python can feel deceptively easy. Continue reading on Medium »
Python for Data Science — Defensive Coding for Noisy Data
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Python for Data Science — Defensive Coding for Noisy Data
If you’ve only worked with clean tutorial datasets, Python can feel deceptively easy. Continue reading on Medium »
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Write Pandas Like a Pro With Method Chaining Pipelines
Master method chaining, assign(), and pipe() to write cleaner, testable, production-ready Pandas code The post Write Pandas Like a Pro With Method Chaining Pipe
How Boards Can Use Question Refinement Patterns to Turn Complex Data into Actionable Insights
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How Boards Can Use Question Refinement Patterns to Turn Complex Data into Actionable Insights
Photo by Planet Volumes on Unsplash Continue reading on The Boardroom Knights »
How Boards Can Use Question Refinement Patterns to Turn Complex Data into Actionable Insights
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How Boards Can Use Question Refinement Patterns to Turn Complex Data into Actionable Insights
Photo by Planet Volumes on Unsplash Continue reading on The Boardroom Knights »
The Emoji Bug in SQL Server That Isn’t Actually a Bug
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Emoji Bug in SQL Server That Isn’t Actually a Bug
You run the same logic in two databases: Continue reading on Medium »
The Emoji Bug in SQL Server That Isn’t Actually a Bug
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Emoji Bug in SQL Server That Isn’t Actually a Bug
You run the same logic in two databases: Continue reading on Medium »
Lebanon News Focuses on War. People Search Survival.
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Lebanon News Focuses on War. People Search Survival.
In March 2026, nearly all international news coverage about Lebanon focused on conflict. But public attention told a different story. Continue reading on Medium
Spatially Prioritizing Land Restoration in Kenya: A Data-Driven Approach to Maximizing Impact for…
Medium · Machine Learning 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Spatially Prioritizing Land Restoration in Kenya: A Data-Driven Approach to Maximizing Impact for…
One of the greatest questions for investors, communities, scientists, policymakers, governments, and anyone who cares about land… Continue reading on Medium »
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Introduction to SQL: Basics and Types of Queries
Structured Query Language (SQL) is the standard language used to interact with relational databases. It allows users to store, retrieve… Continue reading on Med
Choosing the Right Python Data Structure: List, Tuple, Set, or Dictionary?
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Choosing the Right Python Data Structure: List, Tuple, Set, or Dictionary?
A practical guide to understanding when — and why — to reach for each one. Continue reading on Medium »
Counting the Silence: The Data That Proves Gender Bias in Music
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Counting the Silence: The Data That Proves Gender Bias in Music
What’s going on, and what we can do about it Continue reading on Fourth Wave »
EDA Made Simple: How to Explore Any Database Like a Pro!
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
EDA Made Simple: How to Explore Any Database Like a Pro!
Practical techniques to navigate complex databases and ask the right questions Continue reading on Medium »
What FP&A Actually Looks Like in Insurance And Why Most Analysts Aren’t Ready for It
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
What FP&A Actually Looks Like in Insurance And Why Most Analysts Aren’t Ready for It
Budgeting and Excel are the entry ticket. Here’s what actually makes you valuable. Continue reading on Medium »
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Stocked or Stranded? Predictive Analytics In Healthcare Supply Chains
In 'Closing the Gap: Where Are Africa’s Healthcare Predictive Models', it was evident that the gap between research findings and… Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Stocked or Stranded? Predictive Analytics In Healthcare Supply Chains
In 'Closing the Gap: Where Are Africa’s Healthcare Predictive Models', it was evident that the gap between research findings and… Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The First Act of Creation Is Not Building — It Is Naming
Why creation begins long before code, matter, or form Continue reading on Medium »
The Alchemy Of Information
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Alchemy Of Information
From Overload to Vitality Continue reading on Beyond Lines »
Best Proxies for Web Scraping (2026 Guide)
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Best Proxies for Web Scraping (2026 Guide)
Discover the best proxies for web scraping in 2026, including datacenter, residential, and rotating setups. Continue reading on Medium »
How Polls Predict Elections Without Asking Everyone (And Why They’re Sometimes Wrong)
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How Polls Predict Elections Without Asking Everyone (And Why They’re Sometimes Wrong)
Let us just say it is election season and you turn on the news and see: Continue reading on Medium »
Stop Chasing Shadows: Why Domain Intelligence is the Analytics Upgrade You Didn’t Know You Needed
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Stop Chasing Shadows: Why Domain Intelligence is the Analytics Upgrade You Didn’t Know You Needed
I’ve spent the better part of the last decade staring at dashboards. If you’re like me — somewhere in that mid-career “sweet spot” where… Continue reading on Me
This Single Indicator Is Best For Swing Trading
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
This Single Indicator Is Best For Swing Trading
SCALPER PRO Apex Predator System Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Fundamentos y Arquitectura de Datos
Arquitectura propuesta: Continue reading on Medium »
Journal Figure Reproduction | Plotting RDA with Python
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Journal Figure Reproduction | Plotting RDA with Python
Redundancy Analysis Continue reading on Top Python Libraries »
Journal Figure Reproduction | Plotting RDA with Python
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Journal Figure Reproduction | Plotting RDA with Python
Redundancy Analysis Continue reading on Top Python Libraries »
Simulation: Using Random Numbers to Model Uncertainty
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Simulation: Using Random Numbers to Model Uncertainty
Using random numbers and simulation to understand uncertainty and make better decisions. Continue reading on Medium »
Job Scraping Tools vs API: Reliability, Cost, and Compliance
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Job Scraping Tools vs API: Reliability, Cost, and Compliance
Disclaimer: This section is informational, not legal advice. Continue reading on Medium »
Why Jupiter Devoured Shoemaker-Levy 9 and Spared 3I/ATLAS
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Jupiter Devoured Shoemaker-Levy 9 and Spared 3I/ATLAS
Continue reading on Medium »
Why "Vibe Coding" Your Data Warehouse is a Terrible Idea
Dev.to · Lucas Ehara 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why "Vibe Coding" Your Data Warehouse is a Terrible Idea
Recently, the term "vibe coding" has been everywhere. It’s that practice of sitting down, opening...
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Agentic Data Visualization Recommender for Tabular Data
Team Members Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Agentic Data Visualization Recommender for Tabular Data
Team Members Continue reading on Medium »
ETL vs ELT: Which One Should You Use and Why?
Dev.to · Lawrence Murithi 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
ETL vs ELT: Which One Should You Use and Why?
Introduction Imagine you are running a massive kitchen. Every day, trucks arrive carrying...
Anketler İncelemesi - Detaylı Teknik Analiz Rehberi 2026
Dev.to · FORUM WEB 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Anketler İncelemesi - Detaylı Teknik Analiz Rehberi 2026
Anketler İncelemesi - Detaylı Teknik Analiz Rehberi 2026 Anketlerin Tarihçesi ve Gelişimi...
The Respondent
Dev.to · thesythesis.ai 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Respondent
Consumer sentiment hit the lowest point in the survey's seventy-four-year history on the same day markets posted their best weekly gain in five months
Your Customers Don't Care About Your Data Strategy — Until It Fails Them
Hackernoon 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Your Customers Don't Care About Your Data Strategy — Until It Fails Them
Customer experience isn’t just about front-end innovation—it’s driven by the quality of your data. Poor governance leads to broken interactions, flawed AI outpu
Your Analytics Stack Is Shipping Interpretation Bugs
Hackernoon 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Your Analytics Stack Is Shipping Interpretation Bugs
Dashboards and agentic systems do not just report the business. They shape what the business starts treating as true. In fast-moving, post-raise companies, that
Building A Bulletproof Strategy For Data Recovery (Sponsored)
KDnuggets 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Building A Bulletproof Strategy For Data Recovery (Sponsored)
Data disruptions are no longer rare events. Hardware failures, ransomware, and unexpected outages can interrupt operations at any time. The difference between a
Data Mining
Towards AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Data Mining
Author(s): Sefa Bilicier Originally published on Towards AI. Introduction In today’s digital economy, data has become the new oil. But unlike oil, which require
The Data Trust Crisis: How Bad Data Undermines ROI, AI, And CX
Forbes Innovation 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Data Trust Crisis: How Bad Data Undermines ROI, AI, And CX
What was once seen as an operational inefficiency is now a growth problem. Companies that cannot trust their data struggle to compete against those that can.
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Turning 127 Million Data Points Into an Industry Report
What I learned about data wrangling, segmentation, and storytelling while building an application security report from scratch The post Turning 127 Million Data
Search Engine Journal 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Reporting Uncertainty Without Losing Credibility via @sejournal, @bngsrc
Communicate what your data can and cannot prove to avoid costly decisions driven by incomplete insights. The post Reporting Uncertainty Without Losing Credibili
Conversion Sciences 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1y ago
Statistical Hypothesis Testing: A Simple Guide to Smarter A/B Tests
Having trouble viewing the text? You can always read the original article here: Statistical Hypothesis Testing: A Simple Guide to Smarter A/B Tests A fundamenta