Databases
14 guides tagged “Databases”.
- Deploying AI-Generated Apps to Production: A Vibecoder's Checklist Your AI wrote the app. Now here's every step between 'it works on my machine' and 'it's running in production.' Deployment, monitoring, secrets, databases, and the checklist your AI didn't include.
- How to Debug AI-Generated Database Queries That Return Wrong Results Your AI wrote a database query. It runs, but returns the wrong data — missing rows, wrong counts, stale results. Here's how to extract the raw SQL, test it directly, and fix it without the AI rewriting your whole data layer.
- Eventual Consistency vs Strong Consistency: What's the Difference (and When Does It Matter)? Strong consistency guarantees all readers see the same data immediately. Eventual consistency saves latency and availability but lets reads return stale data. Here's when each is the right call.
- Software Engineering for AI Builders: The Concepts Your Coding Assistant Won't Teach You Your AI writes the code, but it doesn't teach you testing, architecture, databases, or Git. Learn every software engineering concept you need to go from vibecoding to shipping. 45+ linked guides.
- How to Add an Index to a Slow SQL Query Diagnose a slow query with EXPLAIN, add the right index, and verify the speedup. A practical PostgreSQL tutorial.
- What Are Database Migrations (and Why Do They Break Deploys)? A migration is a versioned change to your database schema, applied in order. Learn how they work and the failure modes that take down deploys.
- What Is the N+1 Query Problem? The N+1 problem fires one query per row instead of one query total, and AI-generated ORM code causes it constantly. Learn it with a code example.
- What Is Eventual Consistency (and Why Do My Reads Return Stale Data)? Eventual consistency means a write becomes visible everywhere after a delay. Learn why distributed systems use it and when stale reads are a problem.
- How to Set Up Automated Database Backups Set up automated, tested database backups with a scheduled job, off-site storage, and a restore drill. Concrete commands for PostgreSQL.
- How to Fix 'Too Many Connections' in Postgres 'Too many connections' means your app exhausted Postgres's connection limit. Learn the real causes, the quick fixes, and the permanent ones.
- What Is a Database Transaction (ACID)? A transaction groups database operations so they all succeed or all roll back. Learn ACID, why transfers need it, and how to use it in code.
- What Is Database Indexing (and Why Is My Query Slow)? A database index is a lookup structure that lets queries find rows without scanning the whole table. Learn how indexes work and why queries are slow.
- What Is an ORM (and When Should You Use Raw SQL)? An ORM maps database tables to objects so you write queries in your language. Learn what it hides, what it costs, and when raw SQL is the right call.
- What Is a Connection Pool? A connection pool reuses database connections instead of opening one per request. Learn why your app hits 'too many connections' and how pooling fixes it.