1. Redis :
Redis 代表远程字典服务器，它是一个内存数据结构项目，实现了具有可选持久性的分布式内存键值数据库。 Redis 由 Redis 实验室开发，最初于 2009 年 5 月 10 日发布。它使用 ANSI 和 C 语言编写。 Redis 提供内存效率、运行速度快、高可用性，并提供一些特性，如可调性、复制、集群等。
2. 玛丽亚数据库：
MariaDB 是一个开源关系数据库管理系统 (RDBMS)，是广泛使用的 MySQL 数据库技术的兼容替代品。它由 MariaDB Foundation 开发并于 2009 年 10 月 29 日首次发布。MariaDB 具有大量新功能，这使其在性能和用户导向方面更加出色。
Redis 和 MariaDB 的区别：
| S.NO. | Redis | MariaDB |
|---|---|---|
| 1. | It developed by Redis labs and initially released on May 10, 2009. | It is developed by MariaDB Foundation and initially released on 29 October 2009. |
| 2. | Redis is written in ANSI and C languages. | MariaDB is written in C, C++, Perl and Bash languages. |
| 3. | The primary database model for Redis is Key-Value store. | The primary database model for MariaDB is Relational DBMS. |
| 4. | Redis is Data Schema free. | In MariaDB Data Schema supports Dynamic columns. |
| 5. | Redis does not supports XML data format. | MariaDB supports XML data format. |
| 6. | Redis supports both Master-Slave Replication and Multi-Master Replication. | MariaDB supports both Master-Slave Replication and Master-Master Replication. |
| 7. | Redis does not provides the concept of Referential Integrity. Hence, no Foreign Keys. | MariaDB provides the concept of Referential Integrity and have Foreign keys. |
| 8. | Redis supports secondary indexes only with RediSearch module. | MariaDB supports secondary indexes without any restrictions. |
| 9. | Server operating systems for Redis are BDS, Linux, OS X, Windows. | Server operating systems for MariaDB are FreeBSD, Linux, Solaris, Windows. |
| 10. | Famous companies like Twinkl Educational Publishing, Merrill Corporation, ASOS.com Limited, Owler, Inc., etc uses Redis. | Famous companies like CUNY, Accenture, Docplanner, Grooveshark, Northrop Grumman, uses MariaDB. |