Data Analytics & Business Intelligence

Let me be honest with you upfront. Continue reading on AI & Analytics Diaries »

What is Data Preprocessing? Continue reading on Medium »

Most people judge a dashboard by what they can see. Continue reading on Medium »

Part 2 of the Arsenal FC Player Analysis Series Continue reading on Medium »

Preparing for data engineering interviews can feel overwhelming, especially when you’re trying to...

Learn SQL via sqlite 3 in python worksheet Continue reading on Medium »

On provenance, composition, and what’s actually scarce in institutional research after the LLM wars end. Continue reading on Medium »

In today’s fast-evolving digital landscape, businesses are constantly seeking smarter and more efficient ways to manage their data. Data… Continue reading on Me

Big Oil started a war to defend its prices. The same prices are funding its replacement. Continue reading on The New Climate. »

In today’s data-driven business environment, organizations across industries depend heavily on...

Most B2B HVAC catalogs publish fan performance curves as scanned PDFs. Engineers do the interpolation...

This article was originally published on the layline.io blog. Schema drift and upstream breaking...

The Data That Changes Your Negotiation Salary negotiation is asymmetric by default: your...

Functional programming patterns that make data transformations predictable, testable, and production-ready Continue reading on Medium »

Functional programming patterns that make data transformations predictable, testable, and production-ready Continue reading on Medium »

Protein powder is the most purchased supplement category in the United States, generating approximately $21 billion annually. Continue reading on Medium »

From counting characters to extracting emails and cleaning HTML Continue reading on Medium »

From counting characters to extracting emails and cleaning HTML Continue reading on Medium »

From counting characters to extracting emails and cleaning HTML Continue reading on Medium »

Apr 20, 2026 * 6 min read * Memory Continue reading on Medium »

A practical breakdown of tools like Python, SQL, Spark, and emerging AI-assisted analytics workflows Continue reading on CodeX »

A practical breakdown of tools like Python, SQL, Spark, and emerging AI-assisted analytics workflows Continue reading on CodeX »

For the last decade, “self-service business intelligence” usually meant filtering a complex dashboard and hoping you selected the right metric. If a business le

A simulation of how a single forecast change moves through five planning teams, and why most retailers lose money in the gap between Sales and Stores. The post

Continuing error handling with SQL Continue reading on Medium »

The Guide to my Forecasting Methodology With Chart Examples Continue reading on Medium »

Choosing the Right Forecasting Strategy Every supply chain manager faces a critical decision: stick with proven traditional forecasting methods or embrace AI-po

If you've ever wrestled with Excel dates, you know the frustration. One column shows 'MM/DD/YYYY', another 'DD-MMM-YY', and a third just throws up numbers or te

Microsoft data engineering interview questions usually combine SQL (joins, aggregations, window...

Self-Service Analytics Trends, Tools and Best Practices for 2026 Data is no longer limited to data teams. In 2026, businesses want every department to use data

By Collins Njeru I still remember the first time I ran a query that actually meant something. Not...

Airbnb data engineering interview questions lean on SQL for marketplace-style analytics (aggregations, joins, window functions, and… Continue reading on Medium

Why member outcomes are shaped by how stakeholders engage across the system Continue reading on Medium »

AI-powered semantic analytics for Snowflake Data — built entirely inside your Snowflake account. Continue reading on Medium »

Five questions about your write shape, read pattern, and ops headcount that resolve the database choice before the first migration.

Data Science at Amazon isn’t just about modeling; it’s about “Leadership Principles” written in SQL and Statistics. Continue reading on Medium »

A pilot project, a tiny Python library, and the eternal struggle of football data. Continue reading on Medium »

When I started learning data science, I didn’t have a perfect routine. Continue reading on Medium »

Seaborn already gives you beautiful plots out of the box. But if you stop there, you’re leaving a lot on the table. Continue reading on Medium »

Seaborn already gives you beautiful plots out of the box. But if you stop there, you’re leaving a lot on the table. Continue reading on Medium »

Jujur aja, nembus kerjaan di bidang data jaman sekarang tuh susahnya minta ampun. Continue reading on Medium »

Some Costs Show Up on the Invoice. Some Show Up on Your Team. Continue reading on Data Success »

A data science deep dive into Canada’s Accommodation & Food Services sector. Continue reading on Dev Genius »

Numbers in a table tell you something. A chart tells you the same thing in a second. You can stare...

Uber Data Engineering Interview Questions & Prep Guide Uber data engineering interview...

El error estructural de decidir solo desde los sobrevivientes Continue reading on Medium »

Most slow Pandas code "works", until it doesn't. Learn how to spot hidden bottlenecks, avoid costly row-wise operations, and know when Pandas is no longer enoug

In the world of data, working with Excel and CSV files is a daily reality for many. While incredibly powerful, Excel can quickly become a source of frustration,