DB2, Operating Database
DB2 has a long history and was once considered to be the first database product to use SQL. Most often though, when people say DB2, they tend refer to IBM's flagship relational database management system, DB2 Universal Database. But nowDB2 is also embedded in the IBM iSeries operating system. The name DB2 was first given to the Database Management System or DBMS in 1982 where IBM released SQL/DS and DB2 on its mainframe platform.