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30 BI Engineering Interview Questions That Actually Matter in the AI Era

The BI interview hasn't caught up with the job. Here are 30 questions that reflect what it actually means to be a BI engineer in 2...

The Cost of Compute: Architecting High-Performance SQL in Distributed Lakehouses

In modern lakehouses like Snowflake and Databricks, inefficient SQL directly increases compute costs. This article breaks down adv...

From SQL Analytics to Predictive Decision Systems: Operationalizing ML Models in...

SQL analytics shows what happened, but modern businesses need to act on what will happen next. The real challenge isn’t building M...

The HackerNoon Newsletter: The Ethereum Beacon Chain as a State Machine (3/24/20...

Your SQL Team Is Losing 40% of Their Time to Tasks AI Can Handle Right Now

AI tools can help developers focus on design, performance, and harder problems. About 84% of developers already use, or plan to us...

Mastering Database Functions: A Beginner's Guide to Simplifying Backend Code

A database function is a block of reusable code that lives inside your database. Think of it like a regular function in any progra...

Data Contracts Won't Save You If Your AI Agent Can't Read Them

Data contracts are designed for one type of consumer: a human operating a pipeline or building a dashboard. The contracts assume s...

I Built the Same Data Pipeline 4 Ways. Here's What I'd Never Do Again.

Apache Airflow is an open-source data-driven analytics tool. It can be used to pull raw data from S3, clean it, join it against a...

I Asked 5 LLMs to Write the Same SQL Query. Here's How Wrong They Got It

ChatGPT is an AI-generated database. It can be used to test and improve the quality of data. The author tested 10 real queries and...

Doctrine DQL vs Native SQL in Symfony: Which Is Faster?

Should you use Doctrine DQL or Native SQL in Symfony? Learn when each wins with benchmark results, DTO patterns, and real producti...

Churn Isn’t One Problem—It’s Four

Learn how to bucket churn (payments, persona, time-to-value, happy exits) and fix it in the right order to boost LTV fast.

The Ghost in the Warehouse: How to Solve Schema Drift in Analytical AI Agents

The "Monday Morning Problem" is a familiar nightmare for teams deploying analytical AI. In the world of conversational AI for anal...