{"id":7483,"date":"2025-10-10T05:04:08","date_gmt":"2025-10-10T05:04:08","guid":{"rendered":"https:\/\/mailitics.com\/index.php\/2025\/10\/10\/intuitively-obvious-to-the-most-casual-observer-171828-aspx\/"},"modified":"2025-10-10T05:04:08","modified_gmt":"2025-10-10T05:04:08","slug":"intuitively-obvious-to-the-most-casual-observer-171828-aspx","status":"publish","type":"post","link":"https:\/\/mailitics.com\/index.php\/2025\/10\/10\/intuitively-obvious-to-the-most-casual-observer-171828-aspx\/","title":{"rendered":"Intuitively Obvious to the Most Casual Observer"},"content":{"rendered":"<p>    Intuitively Obvious to the Most Casual Observer<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>When we draw lines within an entity-relationship diagram (ERD) that represent a &#8220;relationship,&#8221; the diagram only shows the exterior presentation. A relates to B in a one-to-many fashion. But what is the actual nature of that A-to-B relationship? Is the relationship one of composition where A is the whole and each B is a part of A? Can any B exist without an A?<\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><\/p>\n<p> \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/www.dbta.com\/Columns\/Database-Elaborations\/Intuitively-Obvious-to-the-Most-Casual-Observer-171828.aspx\">Go to dbta<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Intuitively Obvious to the Most Casual Observer When we draw lines within an entity-relationship diagram (ERD) that represent a &#8220;relationship,&#8221; the diagram only shows the exterior presentation. A relates to B in a one-to-many fashion. But what is the actual nature of that A-to-B relationship? Is the relationship one of composition where A is the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[66],"class_list":["post-7483","post","type-post","status-publish","format-standard","hentry","category-dbta","tag-dbta"],"_links":{"self":[{"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/posts\/7483"}],"collection":[{"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/comments?post=7483"}],"version-history":[{"count":0,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/posts\/7483\/revisions"}],"wp:attachment":[{"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/media?parent=7483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/categories?post=7483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/tags?post=7483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}