database
4 posts tagged with "database"
The N+1 Query Problem: Why Your API is Slow
The N+1 problem is the most common performance killer in backend applications. Here's how to detect and fix it across different ORMs.
Database Indexing: What Every Backend Engineer Should Know
Indexes can make or break your application performance. Here's how they work internally and when to use them.
Database Connection Pooling: Why Your Server Crashes at 100 Concurrent Users
You're opening a new database connection for every request and wondering why your server dies under load. Here's how connection pooling works and how to configure it properly.
MongoDB Aggregation Pipeline: Replace Your Application Logic with Database Logic
Stop fetching all documents and filtering in JavaScript. MongoDB's aggregation pipeline can do joins, grouping, pagination, and analytics in a single query.