DB2 is a product, a commercial relational database developed by IBM. It is a set of tools that allows it to efficiently and reliably store data and manipulate it. Data is stored in tables.
From a technical perspective, DB2 is a relational database management system - RDBMS. DB2 uses the programming language SQL (Structured Query Language).
DB2 was introduced by IBM in 1983.
IBM DB2 in practice: Almost all applications that work with data, use for its storage and management some database. DB2 is one of the options to ensure the provision of data to the applications. It is mainly used for large enterprise applications and solutions. It is used by independent developers, medium-sized companies and large corporations. DB2 competitors include Oracle, SQL Server and MySQL (Open source).