Data Analytics & Business Intelligence

Here's something nobody tells you when you start Power BI: the visuals are the easy part. You can...

Introduction The S&P 500 and Nasdaq are two of the most widely followed indices in the...

Over the past few weeks, I’ve been diving into the fundamentals of data analysis. It’s been an eye...

If you have ever tried to build anything around earnings season, a trading dashboard, a backtest, a...

Learn how to restructure your senior data scientist resume from a Chinese state-owned enterprise for Western tech roles. Includes a before/after bullet rewrite,

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is...

5 SQL Interview Questions That Trip Up Beginners If you're prepping for a tech interview,...

Indian algo traders and quant developers hit the same wall: they reach for pandas_market_calendars,...

If you've ever tried to pull U.S. company filings straight from SEC EDGAR, you know the pain. The...

Using ClickHouse® Python Clients Effectively: A Practical Guide Day 54 of...

MIT-licensed pure-Python classifier that parses SEC 8-K bodies and surfaces buried Item 1.03/2.04/3.01/5.02 language mis-tagged under Item 8.01. Walkthrough of

For years, the success of a data platform was measured by one thing: How easily people could build...

Introduction: The Monitoring Dilemma in Card Fraud Prevention Excessive transaction...

FF3-1 vs FF1 format-preserving encryption for RUT, CPF, and DNI in Polars: reversible PII masking, the domain minimum, and GDPR pseudonymization.

Here is a question I could not answer from the headlines: which European countries are actually...

Sites financeiros são minas de ouro de dados tabulares. Preços de ações, holdings de ETFs, índices de...

This is the third of four short posts about matten. The previous post covered the numeric core. This...

A compressor test rig generates continuous multi-channel data — pressure at 5+ locations, temperature...

Filters in Microsoft Power BI help refine data in reports by displaying only the information that...

V28 didn't replace V24 overnight. CMS blends the two models over multiple payment years, which means...

Privacy-preserving analytics is a method of analyzing data while ensuring that individual identities...

Building a real-time event analytics dashboard for web traffic is simple. Building one to track...

Introduction Microsoft's Power BI is a well-known business intelligence tool, commonly...

Despite the rise of Python, R, notebooks, cloud warehouses, and custom analytics platforms, Power BI...

I chose data for a reason I used to avoid saying out loud: the money mattered. I wanted a career that...

The OBT vs star schema debate is mostly people optimizing for different things without saying so. Here's how I stopped picking a side.

En mars 2024, notre plateforme d’agents vocaux a traité 1 200 000 appels en Suisse romande, et la...

I started sketching a small reference page for a game that hasn't launched yet, and the first schema...

I have built the scraping guts behind more "real time business intelligence" products than I would...

How to structure IoT sensor output into three evidence dimensions with example data models and API payload schemas.

Web Scraping with Python in 2026: Best Libraries and Anti-Bot Strategies Web scraping in...

What Even Is Power BI? Power BI is a data visualization and business intelligence tool by Microsoft....

Stock screeners feel like something you should have to pay a data vendor for. Market cap, sector,...

Data Modeling, Relationships, and Schemas in Data Analytics In the fields of data...

Why the people running a company can't actually see it — and why traditional analytics keeps producing conclusions nobody ever verifies, from the HiPPO to the A

A practical, verified guide to collecting Saudi Arabia property data from the major portals — including the REGA advertisement-license trick that lets you dedup

A practical guide to querying H-1B salary data by employer and role programmatically, using the authoritative DOL OFLC LCA disclosure files with runnable Python

A practical, honest guide to Understat xG data export — how the data is embedded in the page, a runnable Python scraper that decodes it, and how to dump league,

Most of my scrapers answer one question: what's on the site right now. But that's almost never the...

Introduction Excel works fine when all your data fits in one table but the moment you have...

Today was my first day of learning SQL and my interaction with it was very unique its not like excel...

Build a Box Plot Calculator in Pure JavaScript — No Libraries Needed A box plot (or...

Most NFL head coaches would rather punt on 4th-and-2 from the opponent's 40-yard line than face a...

The 12 metrics that actually matter, the React Native instrumentation realities, and the 4 failure modes that make your dashboards lie.

Como combinei dados reais da fase de grupos com histórico e ranking FIFA para ranquear os favoritos —...

Databricks announced LTAP, Lake Transactional/Analytical Processing, at Data + AI Summit this week....

n8n shipped a native Guardrails node back in November. PII detection, jailbreak protection, content...

Every month it's the same CSV exports. Same system, same columns, same handful of cleanup steps...