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
Your outlook towards Excel is making you miserable
For data folks who are stuck with MS Office. Continue reading on DataAutodidact »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Complete Data Science Process: A Step-by-Step Guide for Beginners and Professionals-IABAC
Data has become one of the most valuable assets for organizations across industries. Companies rely on data-driven insights to improve… Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Pandas, the Most Valuable Python Library for Data Analysts
If you ask ten data analysts which Python library they use most often, many will likely say Pandas. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Pandas, the Most Valuable Python Library for Data Analysts
If you ask ten data analysts which Python library they use most often, many will likely say Pandas. Continue reading on Medium »

Dev.to · Muhammad Bin Nazeer
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Building a Sports Data Pipeline: Lessons from Scotland primed for game of their lives against fallible Brazil
Building a Sports Data Pipeline: Lessons from Scotland primed for game of their lives...
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Training in Dad Mode: How I Built a Strava-to-Notion Dashboard with Python
A small personal automation project for turning fitness data into a useful training system Continue reading on Medium »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why Your Apache Iceberg Tables Are Slowing Down (And How to Fix It)
Continue reading on Medium »

Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Tinkering with Databricks: Claude Desktop, MCP, and a Clinical Intelligence Server
When Claude Desktop becomes the interface, MCP becomes the bridge, and Databricks stays the governed data backbone, the shape of a… Continue reading on Medium »

Dev.to · manja316
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What 86 Days of Clean Prediction-Market History Actually Shows
I archived 17.2M Polymarket price snapshots on one Mac. Here's what the resolved data says about whether the crowd is actually calibrated — and how to check it

Dev.to · Diana Wachenje
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
STATISTICS MATTERS IN DATA SCIENCE
Introduction Statistics is a branch of applied mathematics that helps one to collect,...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
【UoM】 Health Data Science 25/26 — Semester 2 (All Optional)
In Semester 2, every module is optional. You’ll choose 4 out of 11 available units. The course list was shared in mid-November, and you’ll… Continue reading on

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Math Behind “The House Always Wins”
Breaking down the hidden probabilities on the casino floor. Continue reading on Towards AI »

Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Allocation Problem No Spreadsheet Solves on Its Own
How data science turns resource allocation from an argument about opinions into a decision you can actually defend. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What a client constraint taught me about writing Databricks code in 2026
Left to my own devices, I write Databricks code in a terminal. Claude Code across the repo, Databricks Asset Bundles to ship, pytest… Continue reading on Medium
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
My Data Project Was 22 Megabytes for the LLM. Now It’s 241 Kilobytes.
I didn’t change the data. I changed how I packaged it. Continue reading on Medium »

Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Last Summer I Wrote Code to Analyze the Titanic Dataset.
Last summer, I was learning data science the way most people do. Pick a popular dataset. Write some pandas code. Run a few plots. Call it… Continue reading on M

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Building Production-Grade Delta Lake Pipelines with Apache Spark on Databricks
A deep dive into the medallion architecture, Delta Lake internals, Z-ordering, and optimized Spark writes — the patterns that separate… Continue reading on Code

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Audit Workflows, Reef Cameras, Tokenizer Research: Three CDS Capstone Projects
Most graduate-level coursework ends with a final exam or paper. The CDS Capstone Project ends with research the UN features on its blog… Continue reading on Med

Dev.to · Joud Awad
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
49/60 Days System Design Questions
Your data team just opened a $4,200 BigQuery bill. For a single month. One analyst. 12 queries. The...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Survivorship Bias in Backtesting: The Ghosts of the Stock Market
Lehman Brothers, Bear Stearns, Sears — and why every strategy built on S&P 500 historical data is missing the companies that mattered most… Continue reading on
AWS Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
AI-powered BI with Snowflake and Amazon Quick
In this post, you will learn how to build an end-to-end integration between Snowflake semantic views and Amazon Quick. The sample data is user review data for a
Towards Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How to Build a Credit Scoring Grid From a Logistic Regression Model
Turning model coefficients into a 0–1000 score, with risk classes and stability checks The post How to Build a Credit Scoring Grid From a Logistic Regression Mo

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How to Reduce Your Cost to Serve Without Sacrificing Customer Experience
Imagine two customers buying the exact same product at the exact same price. On paper, they generate identical revenue. In reality, one of… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What We Teach Our Private Students (2026)
Public details of the STS 2:1 guidance programme, highlighting our structured, ethical framework. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Why Is Cost to Serve So Hard to Measure?
Two customers buy the exact same product at the exact same price. One of them quietly costs you twice as much to serve. Same revenue line… Continue reading on M

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
I Replaced Pandas Workflows with DuckDB. Here’s What Happened.
The Data Tool I Treated Like a Database Turned Out to Be a Better DataFrame Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Ultimate Guide to Data Visualization with Pandas in 2026: Architectures, PyArrow Backends, and…
The release of Pandas 3.0 on January 21, 2026, marks a fundamental paradigm shift in the Python data ecosystem. For web developers and… Continue reading on Medi
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
From Black Box to Runbook: Why Every Data Product Needs an FAA Checklist
There is a particular kind of silence that happens in data teams when a critical system breaks. Continue reading on Medium »

Dev.to · Edge Lab
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Giant Killings in Champions League: Data Analysis of 30 Years of Upsets
The night of March 6, 2017, will forever be etched into the memory of football fans worldwide. AS...

Dev.to · Salomon
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How to Fetch Real-Time Options Chain Data in Python (Without Paying $99/mo)
If you've ever tried to pull live options data into a Python script, you've probably hit the same...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
R Shiny and Google Cloud Run
Dashboards are useful when you want your audience to be able to explore data without asking them to read through static tables or code. In… Continue reading on

Dev.to · Edge Lab
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
UFC Underdog ROI: I Tracked 500 Fights to Find Systematic Mispricings
"The sharps are cleaning up in the UFC betting markets while casual bettors get slaughtered." That...

Dev.to · Alex Merced
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Apache Data Lakehouse Weekly: June 17 to June 24, 2026
This week the lakehouse community spent most of its energy on two questions. The first is how the...
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Engineering Coding Challenge (Python Data Validation)
Sample Data Engineering Take Home Test with Solution Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How Socioeconomic Factors Influence Chronic Disease Outcomes
Chronic disease management is influenced by far more than medical treatment alone. Research has consistently shown that factors such as… Continue reading on Med

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How you play is where you belong
A location-free model that reads a player’s role from how he behaves on the ball — and the positions he could play. Continue reading on Medium »

Dev.to · Kanishga Subramani
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Day 34: Advanced ClickHouse® Aggregating Functions
Advanced ClickHouse® Aggregating Functions Introduction Aggregation is one of...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
CODE #4: CHOOSING THE RIGHT PROGRAMMING LANGUAGE? (R DATA SCIENCE & VISUALIZATION)
Trade-offs in programming languages; LLM bias toward Python/away from Rust; historical perspective; and a use-case of R for advanced data… Continue reading on M

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
What are data centers in web hosting?
Written by Richard Detering Continue reading on Medium »

Hackernoon
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
How We Built a Per-Plant CO2 Dataset for 4,551 Power Stations Worldwide
The authors built and openly published a dataset covering 4,551 power stations worldwide, combining emissions, ownership, capacity, fuel type, and climate-zone

Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Data Products Aren’t Dead, But They’re No Longer The Endgame
Data products helped organizations organize and govern information at scale, but competitive advantage now comes from embedding trusted data into the decisions

Dev.to · Pulsebit News Sentiment API
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Your Pipeline Is 29.2h Behind: Catching World Sentiment Leads with Pulsebit
Your Pipeline Is 29.2h Behind: Catching World Sentiment Leads with Pulsebit We recently...

Dev.to · Alex Bell
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Azure Data Engineering Interviews Score 11 Points Below Standard Roles: What 15,000 Live Sessions Show
Data Engineering Interview Scores Reveal a Gap Candidates Are Not Preparing For Candidates...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Nobody Needs a GPU All Day
Most of the time, your GPU is waiting for you. Continue reading on Medium »

Dev.to · Maria-Luise Volkmar
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
The Bosman Effect, in one open dataset: how World Cup squads went global (1990 to 2026)
In 1990, roughly one in four players at the FIFA World Cup was based at a club outside the country...
Medium · DevOps
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
From (Heated) Rivalry to (Dirty) Dancing: make 10 devs learn to share one BI app
Just like on a rink, two developers enter the shared BI app to compete for the same measure. Only one will survive. By morning there’s a… Continue reading on Me

Dev.to · Salil Chincholikar
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Building a Financial Reconciliation Platform, Not a Matching Engine
Most reconciliation projects start with a simple assumption. Find two records with matching...

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1w ago
Managing Relational Bottlenecks: A Technical Audit of Advanced Academic Database Support Systems
An architectural evaluation of external infrastructure, dialect precision, and digital footprint protection for computer science and data… Continue reading on M
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