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Relative record data set
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<h2 id="structure">Structure</h2> <p>An RRDS consists of data records in sequence, with the record number indicating the record's logical position in the data set.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a>: 29 A program can access records randomly using this positional number or access records sequentially.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a>: 30 But unlike a <a href="/facts/Key_Sequenced_Data_Set/tbCEQVAK">Key Sequenced Data Set</a>, an RRDS has no keys, so the program cannot access records by key value. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Key-sequenced_data_set/tbCEQVAK">Key-sequenced data set</a></li> <li><a href="/facts/Entry-sequenced_data_set/Py3QI66c">Entry-sequenced data set</a></li> <li><a href="/facts/Linear_data_set/az5WwYqq">Linear data set</a></li></ul> <ul><li><a href="https://web.archive.org/web/20051013071230/http://www.jaymoseley.com/hercules/vstutor/vstutor.htm">https://web.archive.org/web/20051013071230/http://www.jaymoseley.com/hercules/vstutor/vstutor.htm</a></li> <li><a href="http://www.mvsforums.com/techfaqsvsam.html">http://www.mvsforums.com/techfaqsvsam.html</a></li> <li><a href="https://web.archive.org/web/20070311021954/http://www.redbooks.ibm.com/redbooks/SG246105/wwhelp/wwhimpl/js/html/wwhelp.htm">https://web.archive.org/web/20070311021954/http://www.redbooks.ibm.com/redbooks/SG246105/wwhelp/wwhimpl/js/html/wwhelp.htm</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Lovelace, Mary; Dovidauskas, Jose; Salla, Alvaro; Sokal, Valeria (August 2022). "Chapter 1. VSAM basics". VSAM Demystified (PDF). Redbooks (3 ed.). IBM. <a href="https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf" target="_blank">https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Lovelace, Mary; Dovidauskas, Jose; Salla, Alvaro; Sokal, Valeria (August 2022). "Chapter 1. VSAM basics". VSAM Demystified (PDF). Redbooks (3 ed.). IBM. <a href="https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf" target="_blank">https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Lovelace, Mary; Dovidauskas, Jose; Salla, Alvaro; Sokal, Valeria (August 2022). "Chapter 1. VSAM basics". VSAM Demystified (PDF). Redbooks (3 ed.). IBM. <a href="https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf" target="_blank">https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Lovelace, Mary; Dovidauskas, Jose; Salla, Alvaro; Sokal, Valeria (August 2022). "Chapter 1. VSAM basics". VSAM Demystified (PDF). Redbooks (3 ed.). IBM. <a href="https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf" target="_blank">https://www.redbooks.ibm.com/redbooks/pdfs/sg246105.pdf</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>