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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...
The Authorization Gap No One Wants to Talk About: Why Your API Is Probably Leaki...
Broken Object Level Authorization (BOLA) is eating the API economy from the inside out. BOLA happens after you've done everything...
What the Heck is GizmoSQL?
GizmoSQL is an open-source, in-process analytical database engine designed for OLAP workloads. It is a small server that runs Duck...
I Got 15K People to Practice SQL by Turning Them Into Detectives
SQL practice is boring because you're querying meaningless data in a vacuum. I built SQL Case Files - a detective game where you s...
The "Concrete Foundation" Fallacy: Why Your Quick-and-Dirty Database Schema is a...
Most startups fail at scale because of poor database design, not buggy code.
Stop Hacking SQL: How to Build a Scalable Query Automation System
This article explains how to replace ad-hoc SQL jobs with a small, spec-driven system.It outlines the common failure modes (UI-on...
Spring Boot Audit Logs: Capture Every API Action Without Writing Boilerplate Cod...
This guide shows how to build an automated audit logging system in Spring Boot using AOP and JPA, enabling seamless tracking of ev...
Is JOIN Faster Than Correlated Subqueries? Taking a Look and Subsequently Debunk...
The "bad" correlated subquery outperformed the "good" JOIN. The subquery triggered a Nested Loop plan with fast index lookups (25...
