Redis, short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009. Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s important to note that Redis is a NoSQL database system. This implies that unlike SQL (Structured Query Language) driven database systems like MySQL, PostgreSQL, and Oracle, Redis does not store data in well-defined database schemas which constitute tables, rows, and columns. Instead, Redis stores data in data structures which makes it very flexible to use. In this blog, we outline the top Redis use cases by the different core data structure types.
Data Structures in Redis
Let’s have a look at some of the data types that Redis supports. In Redis, we have strings, lists, sets, sorted sets, and hashes, which we are going to cover in this article. Additionally, we have other data types such as bitmaps, hyperloglogs and geospatial indexes with radius queries and streams. While there are some Redis GUI tools written by the Redis community, the command line is by far the most important client, unlike popular SQL databases users which often prefer ...
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