{"id":8253,"date":"2024-03-14T07:47:53","date_gmt":"2024-03-14T07:47:53","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-represent-not-null-in-sql\/"},"modified":"2025-08-03T02:27:47","modified_gmt":"2025-08-03T02:27:47","slug":"how-to-represent-not-null-in-sql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-represent-not-null-in-sql\/","title":{"rendered":"SQL NOT NULL: Query Non-Empty Data"},"content":{"rendered":"<p>In SQL, to indicate that a column&#8217;s value is not empty (not null), you can use the IS NOT NULL condition. This condition is used to filter out records where a specific column is not NULL.<\/p>\n<p>Here is a simple example:<\/p>\n<pre class=\"post-pre\"><code class=\"lang-sql\">SELECT * FROM table_name WHERE column_name IS NOT NULL;\r\n<\/code><\/pre>\n<p>In the example above:<\/p>\n<ol>\n<li>table_name is the name of the table.<\/li>\n<li>The column_name is the name of the column that needs to be checked for being not empty.<\/li>\n<\/ol>\n<p>This query will return all the records in the table_name table where the value in the column_name column is not empty (non-NULL).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In SQL, to indicate that a column&#8217;s value is not empty (not null), you can use the IS NOT NULL condition. This condition is used to filter out records where a specific column is not NULL. Here is a simple example: SELECT * FROM table_name WHERE column_name IS NOT NULL; In the example above: table_name [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[2310,830,7450,11005,1034],"class_list":["post-8253","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-data-filtering","tag-database-tutorial","tag-is-not-null","tag-sql-not-null","tag-sql-query"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SQL NOT NULL: Query Non-Empty Data - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn SQL IS NOT NULL syntax to filter non-empty columns. Complete guide with practical query examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-represent-not-null-in-sql\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL NOT NULL: Query Non-Empty Data\" \/>\n<meta property=\"og:description\" content=\"Learn SQL IS NOT NULL syntax to filter non-empty columns. 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