1. IBM DB2：
IBM DB2是一个关系数据库，由IBM于1983年开发。它被认为是为AI构建的一系列数据库管理产品。它具有执行事务的增强功能。它基于ACID原理工作，具有很高的灵活性和性能。它具有高效的备份功能，并且被认为非常安全。它非常可靠，并且受到Linux，Unix和Windows操作系统的支持。它具有商业许可证，并且具有高可伸缩性。
2. Maria DB：
Maria DB是MySQL的增强版本，由MySQL的原始开发人员开发以增强功能。 Maria DB是一个开源软件。由于它的速度和强大的特性，它已在世界范围内使用。它由Maria DB企业于2009年开发。它是安全的，并且还具有内置数据库防火墙。它是一个具有SQL接口的关系数据库，我们可以从该接口访问数据。
IBM DB2和Maria DB之间的区别：
| S.NO. | IBM DB2 | Maria DB |
|---|---|---|
| 1. | IBM DB2 serves as a family of data management products which is built for AI. | Maria DB is an enhanced version of MySQL. |
| 2. | It has shared nothing architecture. | It is not implemented by shared nothing architecture. |
| 3. | It has more efficient backup functionality as compared to Maria DB. | It has comparatively less efficient backup functionality. |
| 4. | It was developed by IBM in 1983. | It was developed by Maria Enterprise in 2009. |
| 5. | It is a commercial software. | It is a open source software. |
| 6. | It has more scalability and availability as compared to Maria DB. | It has comparatively less scalability and availability. |
| 7. | It doesn’t have inbuilt database firewall. | It has inbuilt database firewall. |
| 8. | Multiple query languages like SQL, JSON, MDX, XML can be used in IBM DB2. | SQL is used in Maria DB. |
| 9. | It cant be used in standalone program. | It can be used in standalone program. |
| 10. | It has fixed data schema. | Data schema is of dynamic type. |
| 11. | It is considered better than Maria DB in terms of ranking. | It is considered less than IBM DB2 in terms of ranking. |