What it does
Redis is an in-memory data store that exposes data structures through a command interface and client libraries. Its quickstart shows how to store a value under a key, retrieve it, and inspect matching keys. Developers use this model for fast application data such as caches, counters, and short-lived state, while choosing deployment and persistence settings to match the workload.
The data-store quickstart is a practical first exercise: connect to a Redis deployment, issue a command that stores a value under a key, read it back, and use a key scan to inspect the example data. Repeat the same interaction through the client library used by the application so the first test matches the production integration.
Redis is not a relational database: its commands operate on keys and data structures rather than SQL tables and joins. Choose key names, expiration behavior, and persistence settings with the application’s data-loss and recovery needs in mind. Redis’s pricing page covers Redis Cloud and Redis Software offerings; because this record focuses on the database engine and its command workflow, it does not assign a single price to every deployment mode.
Strengths
- The official quickstart demonstrates storing and retrieving data by key.
- Redis provides command and client-library workflows for application access.
Watch out for
- Redis uses key-based data structures rather than relational SQL tables.
- Persistence and deployment costs depend on the selected engine or hosted offering.
Best for
- Adding a key-value data store to an application
- Working with cache, counter, or short-lived application state
Sources
- Redis as an in-memory data structure store quick start guide (Oct 25, 2026)
- Pricing | Redis (Oct 25, 2026)