5 articles found
I switched from MongoDB to PostgreSQL after years of document queries, and it stuck. This is the practical walkthrough covering the pg library setup, connection pooling, parameterized queries, error handling, transactions, and the pool config I actually run in production.
I burned a lot of hours on cache invalidation before I figured out which Redis patterns actually hold up under load. Here's what I settled on after running caching in production across several Node.js services.
Database indexes are one of the most powerful tools for optimizing query performance. Learn how B-tree indexes, hash indexes, composite indexes, and more work under the hood, and discover strategies for indexing in both PostgreSQL and MongoDB.
I've used Sequelize, TypeORM, Knex, and raw SQL in production. Prisma is the first ORM where I actually trust the types. Here's what makes it different, where it shines, and the gotchas nobody warns you about.
Your find() queries are holding you back. The aggregation pipeline can do grouping, joins, and reshaping in a single database call. Here's how to actually use it.