Tech Skills

Data Analytics & Business Intelligence

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

17,219
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
All Reads (7,743) Articles (3283)Blog Posts (3520)Tutorials (399)Research Papers (42)News (499)
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Sayora Tools: Your Free Solution for Loan, BMI, and Percentage Calculations
In everyday life, we constantly need quick and accurate calculations. Whether you're planning a loan, tracking your health, or calculating percentages for studi
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How Excel is Used in Real-World Data Analysis
Introduction In today’s digital world, data is everywhere. Businesses, schools, hospitals and organizations collect large amounts of information every day. One
You Didn’t Form a Hypothesis — You Dressed Up a Result in Disguise
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
You Didn’t Form a Hypothesis — You Dressed Up a Result in Disguise
HARKing: The Silent Statistical Sin That’s Quietly Breaking Science Continue reading on Medium »
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Subir Walmart Dataset a Supabase y construir un Data Warehouse + Data Mart
(IBARRA JARA RAFAEL SALVADOR) Continue reading on Medium »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
<think>
Check this out: the user wants me to rewrite this article as a completely new piece from the perspective of a data scientist. I need to: NOT copy any sentences
How many spreadsheets does your firm use every day?
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
How many spreadsheets does your firm use every day?
 Client trackers.  Compliance schedules.  Document lists.  Workflow reports. Continue reading on Medium »
Kesalahan Data Cleaning yang Sering Dilakukan Pemula di Excel
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Kesalahan Data Cleaning yang Sering Dilakukan Pemula di Excel
Dalam proses analisis data, kualitas hasil sangat bergantung pada kualitas data yang digunakan. Data yang masih mengandung kesalahan… Continue reading on Medium
The Customer Asked For Export their data, I Thought It Was A Button
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Customer Asked For Export their data, I Thought It Was A Button
It starts with a small question, can we export our data?, then ya its not that easy hahahha Continue reading on Medium »
Most of Your Data Is Empty on Purpose
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Most of Your Data Is Empty on Purpose
The emptiness is not a defect. It is the business, written down. And teaching a machine to read it is worth more than the model that sits… Continue reading on M
Panduan Membuat Peta Dasar di ArcGIS, QGIS, dan Perangkat Lunak SIG Lainnya
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Panduan Membuat Peta Dasar di ArcGIS, QGIS, dan Perangkat Lunak SIG Lainnya
5520125031076 | Informatika | Universitas Faletehan Continue reading on Medium »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Are More Enterprises Choosing Snowflake for Data Management?
Introduction Data has become one of the most valuable assets for modern organizations. From customer interactions and financial transactions to operational metr
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Designing an Observability-First Data Platform: Architectures, Patterns, and Practical Pipelines
Designing an Observability-First Data Platform: Architectures, Patterns, and Practical Pipelines Designing an Observability-First Data Platform: Architectures,
When should a schema change itself?
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
When should a schema change itself?
Organizations write their reality into documents far faster than anyone can model it. The structures we use to represent that reality —… Continue reading on Gen
OpenStreetMap in Python intro
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
OpenStreetMap in Python intro
OpenStreetMap programming lets you explore and understand urban environments in a different way. It is a rich data source that contains… Continue reading on Med
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
I Spent May Evaluating Different Engines for OCR
Testing fourteen engines on ninety-three human documents The post I Spent May Evaluating Different Engines for OCR appeared first on Towards Data Science .
Why Python Is Becoming the Preferred Language for Data Science
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Python Is Becoming the Preferred Language for Data Science
In today’s digital world, data plays a crucial role in shaping major business decisions. Companies rely on data to understand customer… Continue reading on Medi
Global Data Science Salary Analysis
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Global Data Science Salary Analysis
An end-to-end analytics project using Python with custom synthetic dataset , MySQL, exploratory data analysis, and statistical hypothesis… Continue reading on M
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Best Practices for AI-Ready Data Archiving in 2026 and Beyond
Artificial Intelligence (AI) is rapidly becoming a core component of enterprise operations. Organizations are investing in AI-powered analytics, automation, gen
Why Data Science Is One of the Most In-Demand Skills Today
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Data Science Is One of the Most In-Demand Skills Today
Data Science has become one of the fastest-growing fields in the technology industry. Organizations across healthcare, finance, e-commerce… Continue reading on
I Wrote 35 Production Engineering Resources in 18 Months.
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
I Wrote 35 Production Engineering Resources in 18 Months.
Not theory. The actual catalog data. Which titles sold, which sat, what the highest-paying customers all had in common, and the pattern I… Continue reading on L
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Designing a scalable event-sourced analytics platform with CQRS and a data lakehouse pattern
Designing a scalable event-sourced analytics platform with CQRS and a data lakehouse pattern Designing a scalable event-sourced analytics platform with CQRS and
Reddit r/learnprogramming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
R, Python, and SQL for Neuroscience
I am currently doing my undergraduate degree in Neuroscience and want to work in labs in my 2nd, 3rd, and 4th year. I believe that having knowledge of programmi
One Click and My Colleague Stopped the Meeting
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
One Click and My Colleague Stopped the Meeting
What happens when a data person builds something just for themselves and it works a little too well Continue reading on Medium »
Reddit r/learnprogramming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Stacked between data analytics courses.
i was thinking to shift my career from bba to data analytics. what courses should i do and from where should i do. i have heard google certification will do goo
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Exploring Income Patterns with Python Pandas, Matplotlib, and Seaborn
Exploratory data analysis on the US Census Dataset The post Exploring Income Patterns with Python Pandas, Matplotlib, and Seaborn appeared first on Towards Data
“How I Built My Data Analyst Portfolio from Scratch — And Fixed Every Error Along the Way”
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
“How I Built My Data Analyst Portfolio from Scratch — And Fixed Every Error Along the Way”
Introduction: Building a portfolio website sounds easy until you actually start doing it. In this article, I’ll share exactly what I… Continue reading on Medium
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
The Best Data Asset Strategist (2026 Ranking)
Originally published at https://www.meethayat.com/best-data-asset-strategist/ <img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2C
ClickHouse vs MongoDB: When Milliseconds Become Minutes
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
ClickHouse vs MongoDB: When Milliseconds Become Minutes
A benchmark-driven look at how the same analytical query runs 100–1000x faster on a columnar engine than on a row store. Continue reading on Medium »
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Ensuring Data Integrity with Cryptographic Hashing and the Ethereum Blockchain
Applying blockchain primitives to dataset versioning, provenance, and integrity assurance The post Ensuring Data Integrity with Cryptographic Hashing and the Et
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Business Objects to Power BI Migration: What We Learned from Enterprise BI Modernization Projects
If there's one thing we've learned from working on enterprise analytics transformations, it's this: Business intelligence migration projects are rarely about te
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Escaping the Valley of Choice in BI
Why Agentic BI threatens an entire profession The post Escaping the Valley of Choice in BI appeared first on Towards Data Science .
If You Understand These 5 Database Concepts, You’re Immune to Tech Hype
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
If You Understand These 5 Database Concepts, You’re Immune to Tech Hype
Stop falling for vendor marketing. Underneath the shiny new logos, every database obeys the exact same laws of physics. Continue reading on Medium »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Browser Is the New DLP Control Plane | A R.A.H.S.I. Framework™ Analysis of SaaS, AI and Enterprise Data Security
Browser Is the New DLP Control Plane | A R.A.H.S.I. Framework™ Analysis of SaaS, AI, and Enterprise Data Security <img src="https://media2.dev.to/dynamic/image/
Easily Remove Outliers in Power Query(.pbix included)
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Easily Remove Outliers in Power Query(.pbix included)
Data cleaning is one of the most critical steps in analytics, and outlier removal often determines whether insights are trustworthy or… Continue reading on Medi
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Your Scraper Returned a Clean Row. It Was Wrong.
The row looked perfect. rating: 7 . Valid JSON, right type, no nulls, no missing keys. My schema check waved it through. The page had returned HTTP 200. The sel
I Recovered 5,175 Photos From a Dead HDD and Almost Lost Them Again
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
I Recovered 5,175 Photos From a Dead HDD and Almost Lost Them Again
Or: How I Learned to Stop Worrying and Love the BMP Continue reading on Medium »
Reddit r/learnprogramming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Where can I learn the system design behind Enterprise Data Ontologies?
Hi everyone, I recently went down a rabbit hole watching how companies (like Palantir) use Data Ontologies to connect massive, messy datasets into intuitive gra
Mapa real de roles de Data e IA: guía práctica para no volver a liarte
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Mapa real de roles de Data e IA: guía práctica para no volver a liarte
Cuando todos usan palabras parecidas para trabajos distintos, la confusión no es falta de nivel: es falta de mapa Continue reading on Medium »
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
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Stop Repeating Yourself in DAX: Use Variables for Cleaner Compliance Measures Continue reading on Medium »
I’m 18, Broke, and Teaching Myself Data Science. Here’s the Exact System I Built.
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
I’m 18, Broke, and Teaching Myself Data Science. Here’s the Exact System I Built.
I’m a student. I have no money for bootcamps, no mentor, and barely enough time. Here’s the system I built anyway. Continue reading on Medium »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
SQL Assignment Help for Students | TutorHelp4You
Get reliable SQL Assignment Help from TutorHelp4You for database projects, queries, normalization, ER diagrams, joins, triggers, and SQL reports. Our experts he
Better Together: Why Data 360 and Informatica MDM Need Each Other
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Better Together: Why Data 360 and Informatica MDM Need Each Other
Reach, trust, and the data foundation your AI agents stand on Continue reading on Medium »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Why Modern Analytics Struggles to Understand User Attention
raditional analytics systems were built around a relatively simple assumption: Users move through predictable digital journeys. Open app → engage → convert. But
Radar Charts: Why They Mislead More Than They Reveal
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Radar Charts: Why They Mislead More Than They Reveal
Radar charts are a very popular visualisation tool. Recently, Anthropic released one which went viral and was used to visualise AI… Continue reading on LS Analy
MongoDB in the Modern Data Stack: A Deep Dive for Advanced Data Engineers
Medium · AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
MongoDB in the Modern Data Stack: A Deep Dive for Advanced Data Engineers
From Operational Store to Pipeline Backbone — Architecture, Internals, and Production Patterns Continue reading on Medium »
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Explaining Lineage in DAX
One of the most important concepts in DAX is lineage. It’s about the information on where something comes from. Let’s see what it is and how we can manipulate i
From CSV Chaos to Clean Dashboards: My Python Data Science Process
Medium · Programming 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
From CSV Chaos to Clean Dashboards: My Python Data Science Process
How I Use Python Automation to Turn Messy Data Into Reliable Insights Continue reading on Python in Plain English »
Dev.to AI 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1mo ago
Achieving Health Equity: Closing the Gap through Data-Driven
Achieving Health Equity: Closing the Gap through Data-Driven Insights As healthcare leaders, we understand that health disparities persist in the United States,