Data Analytics & Business Intelligence

Every few years, the data world gets a new promise that sounds like liberation. Continue reading on Medium »

The pitch sounds almost too good. Because it might be. Continue reading on Medium »

When you first encounter a raw financial dataset, whether from an SEC filing, a Bloomberg feed, or a company’s investor relations page… Continue reading on Medi

A simple shift in mindset that made learning Databricks feel less overwhelming and more practical Continue reading on Medium »

A Titanic notebook will not get you hired. Here is what a real data science project shows, handling messy data, avoiding leakage, honest validation, and a clear

Before building a machine learning model, before writing a single line of predictive code, there is a step that separates mediocre data… Continue reading on Med

Patients have never had more information about their health, but much of it is unusable. Here's why.

Let's practice data science thinking through a probability problem The post Solving the 3Blue1Brown String Probability Problem (Without AI) appeared first on To

I am very proficient in using (MS Word), (MS Excel), and (Adobe Acrobat) to convert pdf to Word or google docs. I am creative and fast… Continue reading on Medi

If you run a website, you’ve probably noticed the slow unraveling of the old analytics playbook. Cookie consent banners annoy visitors, ad… Continue reading on

ClickHouse® offers powerful query optimization features such as Projections and Data Skipping Indexes...

When I joined the data team at an automotive parts company, the inventory query everyone relied on...

Emergency procurement was happening 23 times per month at the automotive parts company where I work....

Step into the future of analytics with the Data Analytics with Gen AI course at the Institute of Data Science and Analytics, Janakpuri… Continue reading on Medi

Postgres is the right default until it isn't. Five questions that tell you when to reach for something else, before you're locked in.

Transactional outbox vs Debezium-style CDC. Coupling, ordering, ops cost, a decision matrix, and the hybrid path most teams end up running.

SQL is one of the most practical skills in data science. If Python helps you analyze data, SQL helps you reach the data in the first place. Continue reading on

“Free” arbitrage and the bot that read the weather. Two flawless hypotheses on paper, two lessons in why efficient markets give you… Continue reading on Medium

Source: Fundamentals of Data Engineering by Joe Reis and Matt Housley, published by O'Reilly...

How to tackle Data Observability outside of Monte Carlo in 2026 Continue reading on Medium »

Three counterintuitive discoveries that will change how you think about models, data, and scaling Continue reading on Medium »

Three counterintuitive discoveries that will change how you think about models, data, and scaling Continue reading on Medium »

A plain-language breakdown of data modeling, OLAP, and OLTP and why mixing them up will cost you. Continue reading on Medium »

Last week a JSON-to-Excel tool quietly changed my data and I almost shipped it to a client. I pasted...

AWR (Automatic Workload Repository) — Continue reading on Medium »

Industry realities, high-paying skills, aur sahi roadmap jo har fresher ko pata hona chahiye. Continue reading on Medium »

Industry realities, high-paying skills, aur sahi roadmap jo har fresher ko pata hona chahiye. Continue reading on Medium »

Microsoft Excel is far more than just a grid of rows and columns, it is the fundamental language of...

More Than Just a Spreadsheet When most people hear "Excel," they picture a grid of cells filled with...

How we replaced notebooks and a warehouse with DuckDB for ad-hoc video watch-time analytics on parti

In today’s digital world, businesses kind of rely heavily on data, to make smarter decisions and so on. From healthcare and finance, all… Continue reading on Me

Daylight saving rules make time zone regions outperform fixed offsets Continue reading on Medium »

Today, I want to talk about how I’m saving anywhere from like 60% to 90% of my tokens for tool calling. And the solution is actually dead… Continue reading on M

A few years ago, getting a degree was enough to start a career. Continue reading on Medium »

They need their documents converted into decision-ready intelligence. Continue reading on Medium »

Most traders spend their time looking for the perfect entry. Continue reading on Medium »

5-P’s Without Needing To Harm Anyone Continue reading on Medium »

Optimizer-focused strategies that eliminate costly scans, improve index usage, and dramatically reduce query latency at scale Continue reading on Medium »

Is it data quality, stakeholder expectations, model deployment, business understanding, or something else? submitted by /u/Effective_Ocelot_445 [link] <a href="

Here is an uncomfortable fact about the digital age: it may leave behind less durable evidence of...

It doesn’t take long for a .claude/CLAUDE.md to grow unwieldy. Continue reading on Data Science Collective »

How to fetch JSON from any REST API in Google Sheets using Apps Script — parse the response, map objects to rows, and write a rectangular 2D array wit

Exploring the Cosmos: A Guide to NASA's Eyes on Exoplanets Tutorial As we continue to push the boundaries of space exploration, the search for exoplanets has be

Discover the external validity threats that can invalidate your A/B test results, from seasonality and sample pollution to the flicker… Continue reading on Medi

Module 1 is done. Here’s everything that’s actually in the system now, how it’s validated, and what’s next. Continue reading on Medium »

By Sunday Ikpe and Femi Akinmade Continue reading on Medium »

My first professional love was data. Anything to do with data. I found it so interesting that everything in any system ever boiled down to… Continue reading on

This project is based on a Nigerian Retail Sales dataset that contains a large amount of raw data, which on its own does not tell a clear… Continue reading on M