Introdução O PostgreSQL é um dos SGBDs mais usados na prática. Ele é robusto, confiável e oferece recursos avançados, como suporte a tipos de dados JSON e JSON...

'Cleaned‑up Markdown

The problem: hidden sequential scans You ship a feature, tests pass, staging looks fine, and then production starts throwing timeouts on a query that worked pe...

Most teams start building a semantic layer the wrong way: they open their BI tool, create a few calculated fields, and call it done. Six months later, three das...

COUNT vs COUNTcolumn Overview - COUNT – counts every row returned by the query. - COUNTcolumn – counts only the non‑NULL values in the specified column. Unders...

Overview Folders group videos by project and tags cross‑label them, but neither solves the common request: “I want to send someone five videos in a specific or...

The Tech Stack I built a full‑stack financial dashboard to track budgets and spending, connecting a Python backend to a SQLite3 database and rendering the outp...

Most database diagrams don’t survive the first sprint. SQL changes, Docker drifts, and the diagram becomes a lie. That’s why I built ForgeSQL. Features - Design...

1. Generated Columns Stop Calculating in Application Code You have a users table with first_name and last_name. Every query that needs the full name does first...

markdown !Star schema with central fact table surrounded by denormalized dimension tableshttps://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-dow...

Shaper Open Source, SQL-driven Data Dashboards powered by DuckDB. Learn more: !Screenshothttps://camo.githubusercontent.com/c19dae1a90aedb46f87d57b780d32dabe1e...

!Cover image for When “MySQL” isn’t actually MySQLhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev...