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
Showing 715 reads from curated sources
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2h ago
The Dying Symphony of Nature :
How climate change silences Cultures, Species, and Nature.
Angelina Shebela Vasilyeva — Summer of 2025 Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4h ago
Student Mental Health Analytics: An Interactive Dashboard in R Shiny
“Mental health is just as important as academic success” Continue reading on Medium »
Dev.to · ahmad-khan-97
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4h ago
Building a US choropleth in Python with plotly express, using a real fragrance dataset
Plotly Express's choropleth is one of the cleanest "low-code, high-output" data viz tools in the...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4h ago
Part 1: You have a spreadsheet and a question — And somewhere between those two things, there’s a…
Most data tools assume you already know what you’re doing. Most people don’t. Continue reading on Medium »
Dev.to · Datta Sable
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5h ago
Beyond the Grid: Engineering Surgical BI Dashboards with Next.js and Canvas APIs
The Crisis of "Slow Data" In the high-stakes worlds of Fintech and Global Sales, a...
AWS Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5h ago
From siloed data to unified insights: Cross-account Athena Access for Amazon Quick
Today, we're announcing cross-account Athena access for Amazon Quick. With this feature, customers can query Athena data in other AWS accounts using AWS Identit
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
6h ago
Before I Wrote a Single Line of Code, I Did This And It Changed Everything
A data analyst’s honest diary of Phase 1: where curiosity met 16,696 rows of uncomfortable truth Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
8h ago
From Spite to a Double Offer: Data Science Intern at Adobe Research
By Anuj Asthana, 23EE10009 Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
14h ago
Stop Wasting Cloud Budget: How Polars Cut Our AWS Bill by 90%?
How Polars Processes Only the Data You Actually Need? Continue reading on Python EveryWhere »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
14h ago
Why Chennai Is Emerging as a Major Center for Data Science Talent in South India
Chennai is undergoing a significant transformation within India’s technology economy. The city’s growth is no longer driven solely by… Continue reading on Mediu
Medium · Startup
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
14h ago
Data Science in Startups — Part 4
Essential Tools Every Data Scientist at a Growing Startup Should Know Continue reading on Insightful Data Stories »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
14h ago
Data Science in Startups — Part 3
How data scientists in growing startups can build business context, communicate across teams, and turn insights into strategic impact. Continue reading on Insig
Medium · Startup
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
14h ago
Data Science in Startups — Part 3
How data scientists in growing startups can build business context, communicate across teams, and turn insights into strategic impact. Continue reading on Insig
Dev.to · Ahmed Algrgawy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
15h ago
In investigations, assumptions kill
Like Jack Reacher once said: “In investigations, assumptions kill.” I think the same thing happens...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
15h ago
OpenClaw is Dead
Why OpenClaw is losing its popularity? Continue reading on Data Science in Your Pocket »
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
15h ago
OpenClaw is Dead
Why OpenClaw is losing its popularity? Continue reading on Data Science in Your Pocket »
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
16h ago
Why PERCENTILE_CONT vs. PERCENTILE_DISC Powerful Than You Think (How to Master Them)
Understand continuous vs. discrete percentile calculations to build more accurate statistical and business analytics Continue reading on Medium »
Dev.to AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
17h ago
AI Analytics Platforms in 2026: Trends, Tools, and Future Predictions
In 2026, data is no longer just a byproduct of business. It is the fuel driving smarter decisions, better customer experiences, and faster growth. However, havi
Dev.to · toshihiro shishido
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
17h ago
Sessions vs Page Views vs Users — What Each One Actually Counts
The 3 web analytics metrics everyone mixes up. Clear definitions, the base inequality (PV ≧ Sessions ≧ Users), which one to look at first, and how GA4 computes
Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
18h ago
5 Mistakes Students Make While Learning Data Science
Most aspiring data scientists make these mistakes without realizing it. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
18h ago
5 Mistakes Students Make While Learning Data Science
Most aspiring data scientists make these mistakes without realizing it. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
18h ago
5 Mistakes Students Make While Learning Data Science
Most aspiring data scientists make these mistakes without realizing it. Continue reading on Medium »
Dev.to · beefed.ai
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
21h ago
Designing a Query Performance Insights Dashboard
Build a Query Performance Insights dashboard that surfaces EXPLAIN plans, latency, resource contention, and slow query attribution for fast triage.
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
How to Diagnose Measurement Issues Systematically in GA4
Before You Change Your Marketing Strategy, Check Your Measurement System Continue reading on Medium »
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
THE ABLE WAY PROTOCOL: BALANCING THE CORPORATE SHADOW THROUGH INVISIBLE ARCHITECTURE
A Technical Manifesto Translating Jungian Archetypes and Erikson’s Virtues into Algorithmic Data Governance Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
How I Mastered Excel and Power BI in One Month to Drive Organizational Decisions
Just a month ago, I believed data analytics was beyond my reach. But through Dataleum’s blended learning in both online and in-person… Continue reading on Mediu
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Como Tabagismo e IMC Influenciam os Custos do Plano de Saúde Corporativo
1.Business Understanding (Entendimento do Negócio) Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
I Had Zero Tech Skills ; Here’s How I Found My Way Into Data Analytics
When I first considered transitioning into tech, I was overwhelmed. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
The Statistical Trap That Looks Like a Win
Here is a question. If a number goes up for every customer segment you care about, what does it do for the total? Continue reading on Medium »
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
AI Is Not Replacing Data Analysts. It’s Replacing Bad Ones. Here’s the Difference.
The uncomfortable truth the industry isn’t saying out loud — and the 6 skills that will decide which side of history you land on. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Aggregations & Grouping in SQL: The Queries Behind Every Dashboard and Report | Part 3
PostgreSQL Mastery Series. A Practical, Follow-Along Course from Basics to Replication Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Bölüm 5: JOIN İşlemleri — Tabloları Birleştirmek
Şimdiye kadar tek tablo üzerinde çalıştık, ancak gerçek dünyada veriler birden fazla tabloya dağılmıştır. İşte JOIN’ler, bu tabloları… Continue reading on Mediu
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
How I Tackle Data Cleaning as a Data Practitioner
Before any insights, dashboards, or conclusions — there is chaos. Raw data is messy, inconsistent, and often unusable in its original… Continue reading on Mediu
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
I Replaced Pandas With Polars. My Data Pipeline Got 12x Faster.
The pipeline was using 28GB of RAM and taking 47 minutes. Here is what actually changed. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Your Power BI Skills Are Not Safe…Here’s What’s Actually Coming
Understand what actions to take to AI proof yourself Continue reading on Generative AI »
Dev.to · muhammad naveed
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
WhyAnalyst: Why Every Data-Driven Decision Needs Better Analysis
Here is the link of app : https://whyanalyst-438909629186.asia-south1.run.app/ In today’s world, data...
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
From “We’ll Look Into It” to “Here’s What Happened + 3 Actions”: How Retail Analytics Is…
I used to hear the same phrase in every retail strategy meeting: “Let me pull the data and get back to you next week.” Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
The Quant Finance Reading List, Filtered
Everyone who gets into quant finance goes through the same arc. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Creating a power BI dashboard for sales performance and revenue monitoring
My first power BI dashboard project: Sales performance and revenue monitoring Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
The SQL Window Function That Makes Every Analyst Look Like a Senior on Day One
One function. Endless use cases. Most analysts discover it two years too late. Continue reading on AI & Analytics Diaries »
Medium · Programming
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
The SQL Window Function That Makes Every Analyst Look Like a Senior on Day One
One function. Endless use cases. Most analysts discover it two years too late. Continue reading on AI & Analytics Diaries »
Medium · AI
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
A Long-Future Archive of Observable-Only and No-Meta Research
Zenodo DOI records with Arweave recovery anchors Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
Google Cloud Next 2026 Data Content
Here we go again! A month ago, 32,000 (give or take) people came together to see what Google had in store for them in 2026. If you want to… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
A arte de fazer perguntas (ou, como transformar um dado correto em uma decisão ruim)
Antes de começar, um relato pessoal Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
I Tested a Product Recommendation System. The Result Was “No” — and That’s the Point
Not every feature moves the needle. Here’s how A/B testing helped me prove it with data Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1d ago
How I Would Validate a Dashboard Before Showing It to Leadership
A practical data analyst guide to checking metric definitions, reconciling source data, catching reporting issues, and building leadership… Continue reading on
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2d ago
The Metric Stack: how all the great products measure success
I’ve spent years querying databases. Turns out the harder question isn’t “how do I pull the data?”- it’s “am I measuring the right thing?” Continue reading on M
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
2d ago
One Case for Archetype Based Optimization: A Statistical Analysis of Slap Hitters Chasing Exit Velo
The MLB is chasing velocity on both sides of the ball, but is this velocity important for everyone or do specific groups benefit more? Continue reading on Mediu
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