What is the difference between IMS and DB2?

Difference between IMS and DB2

IMS (Information Management System) and DB2 are both types of database management systems, but there are some key differences between them:

1. Data Model: IMS uses a hierarchical data model, while DB2 uses a relational data model.
2. Language Support: DB2 supports Structured Query Language (SQL), while IMS uses its own proprietary language called DL/I (Data Language Interface).
3. Architecture: IMS is a hierarchical database system that is well-suited for handling complex, interconnected data relationships, while DB2 is a relational database system that allows for easier data manipulation and retrieval.
4. Scalability: DB2 is known for its scalability and ability to handle large volumes of data, while IMS may require additional resources to scale effectively.
5. Usage: IMS is commonly used in mainframe environments and is often preferred for traditional, legacy applications, while DB2 is widely used in modern IT environments and is popular for web-based applications.

Overall, the choice between IMS and DB2 will depend on the specific requirements of a project, including the data model, language support, architecture, scalability needs, and the nature of the application being developed.