{"id":4560,"date":"2025-06-13T05:05:55","date_gmt":"2025-06-13T05:05:55","guid":{"rendered":"https:\/\/mailitics.com\/index.php\/2025\/06\/13\/what-to-do-when-you-have-nothing-169932-aspx\/"},"modified":"2025-06-13T05:05:55","modified_gmt":"2025-06-13T05:05:55","slug":"what-to-do-when-you-have-nothing-169932-aspx","status":"publish","type":"post","link":"https:\/\/mailitics.com\/index.php\/2025\/06\/13\/what-to-do-when-you-have-nothing-169932-aspx\/","title":{"rendered":"What to Do When You Have Nothing"},"content":{"rendered":"<p>    What to Do When You Have Nothing<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>Inside any database management system (DBMS), one can designate a specific data item as &#8220;null.&#8221; The null represents the &#8220;existence&#8221; of a non-value, the nonexistence of a value, or?nothing. This sounds a bit like an oxymoron, a nonvalue value, but there it is. Each DBMS has its own implementation of null support, so what it does to be able to share with you that &#8220;there is no value&#8221; can differ. For example, rather than a value, there may be a group of bit flags associated with an individual data element, with one of those bits being an &#8220;I am null&#8221; flag. And because every DBMS has its own way of doing this, it is best not to think that by using a null, one is greatly saving on space usage. Space may be saved, or maybe not so much.<\/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\/What-to-Do-When-You-Have-Nothing-169932.aspx\">Go to dbta<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What to Do When You Have Nothing Inside any database management system (DBMS), one can designate a specific data item as &#8220;null.&#8221; The null represents the &#8220;existence&#8221; of a non-value, the nonexistence of a value, or?nothing. This sounds a bit like an oxymoron, a nonvalue value, but there it is. Each DBMS has its own [&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-4560","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\/4560"}],"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=4560"}],"version-history":[{"count":0,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/posts\/4560\/revisions"}],"wp:attachment":[{"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/media?parent=4560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/categories?post=4560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mailitics.com\/index.php\/wp-json\/wp\/v2\/tags?post=4560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}