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

DOS/VSE VSEn (''Virtual Storage Extended'') is an operating system for IBM mainframe computers, the latest one in the DOS/360 lineage, which originated in 1965. DOS/VSE was introduced in 1979 as a successor to DOS/VS; in turn, DOS/VSE was succeeded by ...

and

VM/CMS VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers. The following ver ...

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.

Third party software

Software AG's ''Natural''

4GL A fourth-generation programming language (4GL) is any computer programming language that belongs to a class of languages envisioned as an advancement upon third-generation programming languages (3GL). Each of the programming language generation ...

was an early third-party software product that facilitated using ''SQL/DS''. ''Software AG'' used the name ''Natural 2/SQL-DS'' and, later on, for a related offering, ''Natural 2/DB2''.

References

External links

SQL Reunion 1995: System R, SQL/DS

A History and Evaluation of System R
{{DEFAULTSORT:Ibm Sql Ds Sql DS SQL/DS SQL/DS Relational database management systems