{"id":277,"date":"2014-10-13T15:30:41","date_gmt":"2014-10-13T14:30:41","guid":{"rendered":"http:\/\/www.codereview.co\/?p=277"},"modified":"2014-10-15T14:51:43","modified_gmt":"2014-10-15T13:51:43","slug":"interview-question-2-what-is-a-not-null-constraint","status":"publish","type":"post","link":"http:\/\/www.codereview.co\/index.php\/sql-server-tutorials\/interview-question-2-what-is-a-not-null-constraint\/","title":{"rendered":"Sql Interview question #2 : What is a NOT NULL constraint?"},"content":{"rendered":"<p><strong>Interview question #2\u00a0<\/strong><\/p>\n<p>What is a NOT NULL constraint?<!--more--><\/p>\n<p><span style=\"color: #000000;\"><strong>Solution<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">\u00a0A not null constraint enforces that the column will not accept null values. Not null constraints are used to enforce domain integrity.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>Thanks for reading this article,<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>Next steps :<\/strong><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\"><strong>Share this with your colleagues because Sharing is Learning<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>Comment below if you need any assistance<\/strong><\/span><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Interview question #2\u00a0 What is a NOT NULL constraint?<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[172,3],"tags":[126,134,135,13,12],"_links":{"self":[{"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/posts\/277"}],"collection":[{"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/comments?post=277"}],"version-history":[{"count":4,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/posts\/277\/revisions"}],"predecessor-version":[{"id":345,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/posts\/277\/revisions\/345"}],"wp:attachment":[{"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/media?parent=277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/categories?post=277"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.codereview.co\/index.php\/wp-json\/wp\/v2\/tags?post=277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}