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One-to-one (data model)
open-in-new
<h2 id="see-also">See also</h2> <ul><li><a href="/facts/One-to-many_(data_model)/mUE7lwbd">One-to-many (data model)</a></li> <li><a href="/facts/Many-to-many_(data_model)/2MtUxMVt">Many-to-many (data model)</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20180209164410/http://www.tomjewett.com/dbdesign/dbdesign.php?page=manymany.php">Design pattern: many-to-many (order entry)</a>, Tomjewett.com</li></ul>