1. IBM DB2：
IBM DB2 是 IBM 于 1983 年开发的关系型数据库。它被认为是为 AI 构建的数据库管理产品家族。它具有增强的执行交易的能力。它基于ACID的原理工作，具有很高的灵活性和性能。它具有高效的备份设施，被认为非常安全。它非常可靠，并得到 Linux、Unix 和 Windows 操作系统的支持。它具有商业许可证，并且具有很高的可扩展性。
2. MS SQL :
MS SQL 是微软公司于 1989 年开发的关系型数据库管理系统，是高度可扩展、安全的数据存储平台。它提供具有高性能和安全性的智能分析功能。 MS SQL Server 的核心组件是 SQL Server 数据库引擎，它控制数据及其处理。它支持 ACID 属性并保证可靠地处理事务。
IBM DB2 和 MS SQL 的区别：
| S.NO. | IBM DB2 | MS SQL |
|---|---|---|
| 1. | IBM DB2 was developed in 1983 by IBM. | MS SQL was developed in 1989 by Microsoft. |
| 2. | It is implemented in C and C++ programming language. | It is implemented in C++ programming language only. |
| 3. | AIX, HP-UX, LINUX, SOLARIS, WINDOWS are the server operating system. | LINUX and WINDOWS are the server operating system. |
| 4. | ADO.NET, JDBC, JSON style queries, ODBC, Xquery are the access methods and API’s. | ADO.NET, JDBC, OLE DB, ODBC, Tabular data scheme are the access methods and API’s. |
| 5. | There is no immediate consistency in this. | Immediate consistency is achieved. |
| 6. | The rating of IBM DB2 is less than MS SQL. | MS SQL has high rating as compared to IBM DB2. |
| 7. | It supports FORTRAN and PERL programming language. | It does not supports FORTRAN and PERL programming language. |
| 8. | It does not supports javascript. | It supports javascript (Node js). |
| 9. | Replication method is not dependent on SQL server edition. | Replication method is dependent on SQL server edition. |
| 10. | Document store and RDF store are secondary database model. | Document store and graph DBMS are secondary database model. |