Building a Data Pipeline for Real Estate Feasibility Analysis
Real estate feasibility analysis is often treated as a financial modeling problem, but the financial model is only as reliable as the data behind it…
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What Database Race Conditions Taught Me About Distributed Locks
What 3 Database Race Conditions Taught Me About Distributed Locks When you start building backend systems with asynchronous workflows, everyone tell…
Your Backup Doesn't Exist Until You've Restored It
Everyone has backups. Almost nobody tests them. And an untested backup is not a backup — it's a hope, wearing a backup's uniform. I learned this the…
Fixing a Prisma Client Resolution Issue in a pnpm Monorepo
Introduction While working on the RAHB project, I encountered a Prisma issue in a pnpm monorepo where prisma generate could not resolve @prisma/clie…
Stop writing raw SQL in your migrations (most of the time)
Something I keep seeing across teams, especially with people who are getting comfortable with tools like db-migrate or Kysely , is a very specific h…
The Laravel schema nobody chose
Fifteen real Laravel applications, every one of them a codebase you can go and read. 811 tables. One pinned MySQL 8.0 database, migrations only, no…
Prisma vs Drizzle vs Raw SQL: What Every Backend Developer Should Understand Before Choosing an ORM
When most developers start building backend applications, they're usually focused on one thing, getting an API working. Express routes, controllers,…
ClickHouse 26.8 LTS: 57 Breaking Changes Since 26.3
If you run ClickHouse in production, you're probably on 26.3 LTS. And now 26.8 LTS has been announced, which means the LTS-to-LTS upgrade conversati…
SQL Execution Order Internals: Why WHERE Fails on Aliases but ORDER BY Succeeds
Ever wondered why this query fails in SQL? SELECT department_id , COUNT ( * ) AS emp_count FROM employees WHERE emp_count > 5 -- ❌ Error: Invalid…
PostgreSQL Cheat Sheet: Investigating and Terminating Database Blocking Sessions
If you run PostgreSQL in production for a long time, you will probably see this problem at some point: Queries start waiting. Connections increase.…
Database Performance for Developers: Indexing, Query Plans, and the Queries That Don't Scale
How database indexes actually work: B-trees, selectivity, composite indexes, covering indexes, and reading EXPLAIN plans so your queries scale past…
An ERD MCP Server: AI Agents That Follow Your Naming Standard
AI agents already write database schemas. Ask Claude or Cursor for a feature and the migration file comes back with tables, columns, and foreign key…
I benchmarked 5 managed graph databases — and the "obvious" winner changed depending on what I measured
I benchmarked 5 managed graph databases — and the "obvious" winner changed depending on what I measured The setup I was asked to benchmark CognoDB C…
From Plain English to a Live Dashboard: Automating Reporting with MCP
Someone in your Slack asks, "How many people signed up last week?" You open a SQL client, write a query you've written a dozen times before, run it,…
Day 32: Rebase Replays Your Commits, and a Restore Inherits Everything You Don't Override
Today's two tasks are both about a new base. A feature branch that needs to sit on top of a master that has moved. A database instance that needs to…
Designing the Learning Progression Engine Behind Codervai CP
Originally published at parvejshah.com/blog/scaling-competitive-programming-lms-architectures by Parvej Shah . Competitive programming requires buil…
UUIDs explained — the uniqueness myth, the version you should be using, and the database mistake that slows everything down
You've generated thousands of UUIDs without thinking twice. id column, default value, done — a 36-character string that looks like f47ac10b-58cc-437…
How to Export SQL Results to CSV and Excel (Without Wrecking the Data)
By Michael Nocito , data analyst · Published August 8, 2026 By the end of this page you will export a query result and open it with the leading zero…
AI wave
SOP – User Hardening Automation 1. Objective To automate Aerospike user hardening by removing unwanted users from the target clusters using the appr…
Schema catalogs for AI assistants: the layer nobody wants to maintain
The schema catalog for an AI assistant is the artefact that answers the question "what does this database look like right now". Whether the database…
40001 is not a query error
The PostgreSQL manual is unusually direct about this: When an application receives this error message, it should abort the current transaction and r…
[Перевод] Год баз данных: как я снова полюбил программировать
ВНИМАНИЕ! LLM не вовлечен, опечатки и прочие ошибки сохранены. Предыстория С самого начала как я попал в enterprise я знал - карьера идет не туда. К…
I've got feedback from previous project and implement it in new one! (FastAPI + PostgreSQL + External API + Docker)
I'm learning backend development and I really enjoy it! I created my first API last month and got an amazing feedback! I work hard these days and cr…
MCP vs. a Direct Database Connection: A Security and Workflow Comparison
Sooner or later, someone on your team wants to point an AI assistant at the production database. Maybe it's a support engineer who wants to answer "…
Unread badges that would not clear: 59 of my 64 messages were junk
I am building a small chat feature for an HR system. Shared hosting, PHP, no WebSocket, polling every few seconds. Nothing exotic. Then a bug report…
Key integration points for A‑share real‑time Level‑2 API feeds
Intro While building a simple A‑share market monitor for my quant lab work, I initially only cared about extracting obvious metrics: last price, tot…
How to Rename a Django Application Safely
Renaming a Django application looks simple at first: rename the directory and update the imports. However, if the application already has migrations…
We nearly published a 2x regression that didn't exist
We were about to ship a performance write-up claiming three queries had gotten 2-4x slower. All three numbers were wrong, and the reason is one ever…
Prove Your Backups Actually Restore Automatically, on a Separate Server
If you haven't done any restoration of your backups, you cannot count it as your retrieval strategy. It's simply a case of gambling. The backup job…
Stop Killing Your Database with @Transactional in Spring Boot
The 1-minute fix that slashed my API response time by 40%. We all know @Transactional makes database work easy. But are you using it correctly? Here…