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
3d ago
Tutorial Membuat Dashboard HRD di Power BI untuk Analisis Karyawan
Divisi Human Resources (HR) tidak lagi hanya berfokus pada administrasi karyawan. Saat ini, HR juga dituntut mampu mengolah data untuk… Continue reading on Medi

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
5 Fungsi Power BI dalam Supply Chain dan Operasional Perusahaan
Perusahaan menghasilkan data dalam jumlah besar setiap hari, mulai dari data persediaan barang, pengiriman, produksi, hingga penjualan… Continue reading on Medi

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
Beyond Dashboards: How Data Science and Predictive Analytics Are Transforming Business Decision…
For years, dashboards have been the cornerstone of business intelligence. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
Beyond Dashboards: How Data Science and Predictive Analytics Are Transforming Business Decision…
For years, dashboards have been the cornerstone of business intelligence. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
The Invisible Problem in Agriculture: Why Two People Can Look at the Same Grain and See Different…
Imagine two experienced grain inspectors standing in front of the same sack of wheat. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
Data Science vs Data Analytics: Which Career is Better?
As technology continues to evolve, Data Science and Data Analytics have become two of the most sought-after career paths in the IT… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
From Messy Data to Clear Decisions: A SQL + Power BI Sales Analytics Project
A Medium-ready blog copy with SQL analysis and Power BI-style visual storytelling Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
From Messy Data to Clear Decisions: A SQL + Power BI Sales Analytics Project
A Medium-ready blog copy with SQL analysis and Power BI-style visual storytelling Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
Building a Pit Wall in Python: Simulating F1 Strategy Calls with FastF1
There is a specific kind of tension that happens on lap 21 of a Grand Prix. The tyres have gone off, the pit wall is staring at a timing… Continue reading on Me

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
The Meta-Architecture of Interface Fracture: High-Dimensional Logical Stress and Systemic Collapse…
By Supat Charoensappuech, in collaboration with Google Search AI Mode (3/7/2026) Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
3d ago
Future of Data Science: From Raw Data to Smart Decisions- How AutoML Is Making Data Science More…
Imagine being handed millions of rows of customer data and being asked a simple question: Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Mastering Stepped Wedge Cluster Randomized Trials (SW-CRT): Design and Analysis | Lingcore SCI
A Stepped Wedge Cluster Randomized Trial (SW-CRT) is a one-way crossover design where clusters switch from control to intervention at… Continue reading on Mediu
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
The Analytics Trap: Why More Data Doesn’t Mean Better Insights
The organisations with the most data are not the ones making the best decisions. Continue reading on AI & Analytics Diaries »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
How to Scrape Google Jobs Listings: A Complete Guide to the Google Jobs API
Structured job data, apply links, and hiring signals for about a dollar per thousand listings. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
The Data Analyst Lens
The expression “Data Analyst Lens” should not be understood simply as a reference to technical skill or the ability to work with data. It… Continue reading on M
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Why do people search the same thing in different ways?
Imagine three people who want the exact same thing. Continue reading on Medium »

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Setting Up Your Data Science Toolkit: Pandas, NumPy, Matplotlib
Three libraries. Endless possibilities. Here is how to get them installed and understand what each one actually does. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
15 SQL Tricks That Make You Look Like a Senior Data Analyst
Writing SQL queries that return the correct results is just the beginning. Experienced data analysts and database engineers know that… Continue reading on Stack

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Storytelling with Exploratory Data Analysis (EDA) in Python
In the realm of data science, the ability to tell a compelling story with data is as crucial as the technical skills to analyze it… Continue reading on Python i

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
From Promise to Reliability: Semantic Mapping and SQL Validation as Dual Drivers for Enterprise…
A marketing manager at a fast-growing consumer packaged goods (CPG) company needs to understand the repeat conversion rate of new… Continue reading on Medium »

Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
From Promise to Reliability: Semantic Mapping and SQL Validation as Dual Drivers for Enterprise…
A marketing manager at a fast-growing consumer packaged goods (CPG) company needs to understand the repeat conversion rate of new… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Capacity Is Not Generation: Anatomy of a Convenient Energy Myth
Some claims survive because they are true. Others survive because they are pleasant. Continue reading on Medium »
Reddit r/datascience
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Actuarial Science vs Data Science?
Hi everyone, I'm an actuarial science student in Argentina. Here, SOA certifications aren't as important as having the degree itself, which is legally authorize

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
4d ago
Data Pipeline E2E na Prática: Construindo a Camada Bronze com Python e BigQuery
Parte 1 de 5 — Ingestão bruta na camada bronze Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How to Win Any Argument Using Bad Graphs: A Villain's Guide to Data Visualization
Because sometimes the truth needs a little Excel-based kidnapping. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Building Scalable Data and AI Workflows
Modern data systems need to support much more than traditional reporting. Teams now use data platforms for analytics, machine learning… Continue reading on Medi

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Predictive Analytics for Growth Teams: When Historical Data Stops Being Useful
Mean reversion in marketing channels, the diminishing returns curve, and when to trust your model vs. your gut. Why the past is an… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Predictive Analytics for Growth Teams: When Historical Data Stops Being Useful
Mean reversion in marketing channels, the diminishing returns curve, and when to trust your model vs. your gut. Why the past is an… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
What I Learned Reading Chapter 1 of “Designing Data-Intensive Applications” (2nd Edition)
Data isn’t just storage — it’s distribution, trust, and responsibility. Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Do Countries Really Name Their Streets After the Same Handful of Heroes?
I’ve spent enough time walking around different cities to notice a pattern: certain names keep showing up on street signs, over and over… Continue reading on To
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Product Does Not Sell Itself: Why Commodity Businesses Need Loyalty Analytics
In college, I had two business subjects that stayed with me more than I realized at the time: Customer Relationship Management and… Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Myth of Useless Data
How Capability-Dependent Value Rewrites the History of Information Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Your Data Is Lying to You (Until You Clean It)
How raw, messy data becomes insights that drive better decisions. Continue reading on Medium »

Medium · Machine Learning
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Honest Truth About Learning Data Science Nobody Talks About
I was not the smartest person in the room. I was just the one who refused to quit. Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The Honest Truth About Learning Data Science Nobody Talks About
I was not the smartest person in the room. I was just the one who refused to quit. Continue reading on Medium »

Medium · LLM
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Stop Writing Regex for PDFs: How Smart OCR Makes Document Extraction Effortless
If you’ve ever been tasked with extracting data from PDFs, invoices, or scanned documents, you already know the pain. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The First Five Minutes With Any Dataset Matter More Than the Next Five Hours
Most beginner data analysts jump straight into writing SQL queries, exploring data in Excel, or importing it into Python. Experienced… Continue reading on Mediu

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
The First Five Minutes With Any Dataset Matter More Than the Next Five Hours
Most beginner data analysts jump straight into writing SQL queries, exploring data in Excel, or importing it into Python. Experienced… Continue reading on Mediu

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Data Analysis Is No Longer Just for Experts: A Beginner’s Guide to Excel and Better Decisions
Data Analysis, Excel for Beginners is a practical step-by-step guide that helps beginners understand data, use Excel, organize… Continue reading on Medium »

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Easy Runs in Chennai: The Data Says Heat Adds ~3 bpm Per °C
I Thought I Was Losing Fitness. Running Data Told a Different Story. Continue reading on Medium »

Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How Data Regulations May Fragment The Internet
Rather than trying to aggregate everything into one system, we will have to start focusing on creating greater efficiency across many limited systems.

Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How to Scrape Clean Data and Bulk Download Media Without Getting Banned
A practical guide on building custom Python and JavaScript extraction tools for fast data mining. Continue reading on Medium »

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
How Porn Shapes Expectations About Real Relationships
porn is a performance not real life Continue reading on Medium »

Forbes Innovation
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Humanity’s Biggest-Ever Camera Begins 10-Year Time-Lapse Of The Cosmos
The Rubin Observatory in Chile has begun a 10-year sky survey, using the world’s largest digital camera to find asteroids, supernovae and anything else that mov

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Building a Dataset of Nigerian Fintech Reviews
Every business wants to understand its customers. One of the richest sources of that understanding is often the reviews customers… Continue reading on Medium »
Medium · Python
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Day 3 of My Data Science Journey: Handling Text and Collections
Day 3 was about learning how Python manages text (strings) and collections (lists). These are the building blocks for cleaning, storing… Continue reading on Med

Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Why Your Best Customer Probably Isn’t Your Most Valuable One
From RFM segmentation to predictive Customer Lifetime Value using BG/NBD and Gamma-Gamma models. Continue reading on Medium »
Medium · Data Science
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
Data Science Training in Hyderabad — Build a Successful Career in Data Science
The demand for skilled data professionals is growing rapidly as businesses increasingly rely on data-driven decision-making. From… Continue reading on Medium »
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