Data Analytics & Business Intelligence

Security and access control are critical components of any modern data platform. As organizations...

Introduction MotherDuck is a serverless analytics service built on DuckDB. It hosts DuckDB...

A single Irish company filing costs €2 to view on the CRO portal. Even the latest annual return sits...

Before you can sync data between two systems, you need a reliable way to know what changed. Change...

In one-way data pipelines, conflict resolution is not a concept -- there is one authoritative source....

I'm a final year CS student. I build things in production. Last year, I was working on...

Two ways to predict a race time from one result, implemented in plain JS: Riegel's power law and the Daniels-Gilbert VDOT physiology model, and why both miss on

I just shipped a data-journalism page comparing truck-involved fatalities across 19 major US cities...

How to use Postgres Row-Level Security to ship safe embedded dashboards — wiring JWTs to session context, per-user roles, column masking, and the connection-poo

Early on in my time as the tech lead of a central data team I realised that central data ownership...

I started my tech journey in the visual world of Frontend development. Creating interfaces and...

Last week, for the nth time, I had to bulk-import records using Excel. No matter how advanced and...

If you've ever watched a postgame analysis where commentators throw around batting averages, expected...

I built a custom analytics system into my portfolio backend — a Django REST API that records page...

I am a data engineer 30 years in and I trade weather contracts on Kalshi as a hobby. For a while I...

I published a public data engineering project that demonstrates a cloud-based ETL pipeline for...

A few months ago a friend showed me two tools — Repomix and code2prompt. The idea was simple: point...

Your Pipeline Is 27.0h Behind: Catching World Sentiment Leads with Pulsebit We just...

In This Article The Question The Intuition Trap: The Base Rate Fallacy The Mathematical...

In This Article Why MAPE Misleads The Four-Metric Framework Python Implementation Residual Analysis...

The default for a first scraper is usually printing to stdout or dumping everything into a JSON...

As someone preparing for a career in Data Analytics, I noticed that most SQL resources either focus...

A precise, no-hype guide to exporting Google Patents search results to CSV — the built-in 1,000-row cap, the BigQuery bulk path, and why browser scraping fails.

Open job postings leak strategy. Learn to read company hiring signals from the public, no-auth Greenhouse API with a runnable JS classifier.

A complete R tutorial on correlation analysis — method selection, coefficient calculation, significance testing, and publication-quality corrplot visualization

Quick answer: The Discogs marketplace is the world's largest secondary market for vinyl, CDs, and...

Designing a Modular Event-Driven Data Platform for Real-Time Analytics Designing...

Per-round hash verification proves round integrity, not house edge honesty. We show the math: why 97% and 94% RTP produce indistinguishable per-round proofs, ho

Your Pipeline Is 12.0h Behind: Catching Law Sentiment Leads with Pulsebit We’ve just...

Building a Reproducible Offline-First Data Sync Engine for Edge Analytics ...

If you have ever worked on matching or deduplicating people records at scale, you already know the...

Your model didn’t catch the 24h momentum spike of +0.380 in law sentiment, which is a glaring...

In This Article The Reporting Problem at Scale Pipeline Architecture The Reporting Engine WoW...

Introduction For decades, accessing business data has required technical skills. If you wanted to...

In This Article The Question The Intuition Trap: The Base Rate Fallacy The Mathematical...

In This Article Why MAPE Misleads The Four-Metric Framework Python Implementation Residual Analysis...

INTRODUCTION Configuring a Power BI semantic model involves refining data structures,...

You want Claude — or Cursor, or ChatGPT, or any MCP-aware agent — to answer questions about your...

Atlan does a lot of things well. It also costs $40-80k/year for mid-market deployments, and it gates...

If you've ever tried building anything on top of Instagram data, you've probably hit the same wall I...

Postgres CDC into ClickHouse via Kafka + Debezium, MaterializedPostgreSQL, and ClickPipes — setup, schemas, monitoring SQL, and where each one breaks.

I want to show you a tool I just open-sourced. It's called CausalLens, and it answers one specific...

A while back I picked up what looked like a tiny ticket: show how many times a post has been viewed....

Week 1: Basic fundamentals Day 1: Introduction to Data Analytics, Data Science,...

In today’s digital-first economy, data is no longer just numbers on a server — it’s the lifeblood...

Window functions are one of SQL's most powerful features, but many developers avoid them because the...

a CLI tool that strips outputs and metadata from Jupyter notebooks before git commit

Want to master Excel but don't know where to start? I created a complete 3-level guide that takes...