When would you use Redis as a database?

When should I use Redis database?

Redis can be used with streaming solutions such as Apache Kafka and Amazon Kinesis as an in-memory data store to ingest, process, and analyze real-time data with sub-millisecond latency. Redis is an ideal choice for real-time analytics use cases such as social media analytics, ad targeting, personalization, and IoT.

Can Redis be used as a primary database?

In this Redis tutorial, you will learn about Redis and how Redis can be used as a primary database for complex applications that need to store data in multiple formats.

Why Redis is not used as database?

As Redis is an in-memory storage, you cannot store large data that won't fit you machine's memory size. Redis usually work very bad when the data it stores is larger than 1/3 of the RAM size. So, this is the fatal limitation of using Redis as a database.

Can we use Redis as relational database?

One thing off hand is that Redis isn't a relational database. If you're going to be needing an SQL "JOIN" then you won't want to use Redis, nor any other non-relational database. Redis is faster though than most relational databases.