MySQL和IBM Db2之间的区别

1. MySQL：
MySQL是基于结构化查询语言(SQL)的开源关系数据库管理系统(RDBMS)。它由oracle公司开发和管理，最初于1995年5月23日发布。它被广泛地用于许多小型和大型工业应用程序中，并且能够处理大量数据。

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。

MySQL和IBM Db2之间的区别：

SR.NO	MySQL	IBM Db2
1.	It was developed by Oracle.	It was developed by IBM.
2.	It was released in May 1995.	It was released in 1983.
3.	The primary database model for MySQL is Relational DBMS.	The primary database model for Db2 is also Relational DBMS.
4.	Server operating systems for MySQL are FreeBSD, Linux, OS X, Solaris and Windows.	Server operating systems for Db2 are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
5.	It has the concept of Referential Integrity and Foreign keys.	It also has the concept of Referential Integrity and Foreign keys.
6.	It is written in C and C++ languages.	It is written in C, C++, Assembly language, Java languages.
7.	Some companies like Airbnb, Pinterest, Slack, Udemy, Twitter, etc use MySQL.	Some companies like JPMorgan Chase, Bank of America, Scotiabank, Citi, etc use Db2.
8.	It has fixed data schema.	It also has fixed data schema.