KV Store

Definitions

1. A key-value store — a database or storage system that maps unique keys to arbitrary values, optimized for fast lookups, writes, and deletes by key. Examples include Redis, etcd, DynamoDB, and Cloudflare Workers KV.

   In plain English: A simple database that works like a dictionary: you store data under a unique name and retrieve it by that name, which makes it very fast.

   Example: "Session tokens go in the KV store so any server in the cluster can validate them in under a millisecond."

Related Terms

• ORM
• Migration
• CRUD
• Key-Value Store
• Left Join
• Prefetch
• Query Builder
• Query Cache
• Rails Migration