MariaDB和IBM Db2之间的区别

1. MariaDB：
MariaDB是一个开源关系数据库管理系统(RDBMS)，它是广泛使用的MySQL数据库技术的兼容即插即用替代品。它由MariaDB基金会开发，最初于2009年10月29日发布。MariaDB具有大量新功能，因此在性能和面向用户方面比MySQL更好。

2. IBM Db2：
IBM Db2是IBM开发的一系列数据管理产品，包括数据库服务器。它是一个关系数据库管理系统(RDBMS)，它通过XML支持面向对象的功能和非关系结构。 Db2旨在有效地存储，分析和检索数据。它最初于1983年发布，并用C，C++， Java和汇编语言编写。

MariaDB和IBM Db2之间的区别：

SR.NO	MariaDB	IBM Db2
1.	It was developed by MariaDB Corporation Ab. in 2009	It was developed by IBM in 1983.
2.	It is written in C, C++, Perl and Bash languages.	It is written in C, C++, Assembly language, Java languages.
3.	The primary database model for MariaDB is Relational DBMS.	The primary database model for Db2 is also Relational DBMS.
4.	Server operating systems for MariaDB are FreeBSD, Linux, Solaris and Windows.	Server operating systems for Db2 are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
5.	It provides the concept of Referential Integrity and has Foreign keys.	It also provides the concept of Referential Integrity and has Foreign keys.
6.	It provides ACID transactions without snapshot isolation.	It also provides ACID transactions.
7.	Some companies like CUNY, Accenture, Docplanner, Nasdaq, Red Hat, ServiceNow, etc use MariaDB.	Some companies like JPMorgan Chase, Bank of America, Scotiabank, Citi, etc use Db2.
8.	It has dynamic columns data schema.	It has a fixed data schema.