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SQL/DScite-ref-1[1] (Structured Query Language/Data System),cite-ref-2[2] released in 1981, was IBM's first commercial relational-database management system.cite-ref-3[3] It implemented the SQL database-query language.

SQL/DS ran on the DOS/VSE and VM/CMS operating systems.cite-ref-4[4] 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.cite-ref-5[5]

• Third party software

• References

• External links

Software AG's Natural 4GL 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.cite-ref-6[6]cite-ref-7[7]

cite-note-11. ↑ "SQL/DS". encyclopedia.com.

cite-note-22. ↑ "SQL/DS Version 3 Release 5". 8 February 1999.

cite-note-33. ↑ citerefs-sumathi-s-esakkirajan2007S. Sumathi, S. Esakkirajan (13 Feb 2007). Fundamentals of Relational Database Management Systems. Springer. ISBN 978-3540483977. The product was called SQL/DS (Structured Query Language/Data Store) and ran under the DOS/VSE operating system environment

cite-note-44. ↑ citerefhershel-harris2013Hershel Harris (2013). "SQL/DS: IBM's First RDBMS". IEEE Annals of the History of Computing. 35 (2): 69–71. doi:10.1109/MAHC.2013.28. S2CID 28190519.

cite-note-55. ↑ "DB2 Connect User's Guide".

cite-note-66. ↑ "NATURAL 2/SQL-DS, NATURAL 2/DB2". Computerworld. October 26, 1987.

cite-note-77. ↑ "Natural for SQL/DS".

• SQL Reunion 1995: System R, SQL/DS

• A History and Evaluation of System R