SQL/DS (Structured Query Language/Data System), released in 1981, was IBM's first commercial relational-database management system.[1] It implemented the SQL database-query language.

SQL/DS ran on the DOS/VSE and VM/CMS operating systems. A little later, IBM also introduced DB2, another SQL-based DBMS, this one for the MVS operating system. The two products have coexisted since then; however, SQL/DS was rebranded as "DB2 for VM and VSE" in the late 1990s.


  1. ^ S. Sumathi, S. Esakkirajan (13 Feb 2007). Fundamentals of Relational Database Management Systems. Springer. ISBN 3540483977. The product was called SQL/DS (Structured Query Language/Data Store) and ran under the DOS/VSE operating system environment