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IBM SQL/DS
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<h2 id="third-party-software">Third party software</h2> <p><a href="/facts/Software_AG/UYBP9GQX">Software AG</a>'s <i>Natural</i> <a href="/facts/4GL/QHUEG2IQ">4GL</a> was an early <a href="/facts/Proprietary_software/9zcskxYL">third-party software product</a> that facilitated using <i>SQL/DS</i>. <i>Software AG</i> used the name <i>Natural 2/SQL-DS</i> and, later on, for a related offering, <i>Natural 2/DB2</i>.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a><a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> </p> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95-Prehisto.html#Index71.">SQL Reunion 1995: System R, SQL/DS</a></li> <li><a href="http://www.cs.berkeley.edu/~brewer/cs262/SystemR.pdf">A History and Evaluation of System R</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"SQL/DS". encyclopedia.com. <a href="https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/sqlds" target="_blank">https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/sqlds</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"SQL/DS Version 3 Release 5". 8 February 1999. <a href="http://www.vm.ibm.com/related/sql0612.html" target="_blank">http://www.vm.ibm.com/related/sql0612.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>S. 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 <a href="978-3540483977" target="_blank">978-3540483977</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Hershel 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. <a href="https://dl.acm.org/doi/abs/10.1109/MAHC.2013.28" target="_blank">https://dl.acm.org/doi/abs/10.1109/MAHC.2013.28</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"DB2 Connect User's Guide". <a href="https://www.columbia.edu/sec/acis/db2/db2c0/db2c026.htm" target="_blank">https://www.columbia.edu/sec/acis/db2/db2c0/db2c026.htm</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"NATURAL 2/SQL-DS, NATURAL 2/DB2". Computerworld. October 26, 1987. <a href="/wiki/Computerworld" target="_blank">/wiki/Computerworld</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"Natural for SQL/DS". <a href="https://documentation.softwareag.com/natural/nat426mf/dbms/nsq-over.htm" target="_blank">https://documentation.softwareag.com/natural/nat426mf/dbms/nsq-over.htm</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> </ol>