{"id":14155,"date":"2024-03-15T08:34:30","date_gmt":"2024-03-15T08:34:30","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/"},"modified":"2025-08-06T04:38:06","modified_gmt":"2025-08-06T04:38:06","slug":"what-is-the-function-of-the-datediff-function-in-oracle","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/","title":{"rendered":"Oracle DATEDIFF Function Explained"},"content":{"rendered":"

The DATEDIFF function is a function in Oracle database used to calculate the difference between two dates. It can calculate the difference in days, weeks, months, or years between two dates. The DATEDIFF function uses the following syntax:<\/p>\n

Calculate the difference between the start date and end date in the specified unit.<\/p>\n

In this case, the unit represents the difference unit to be calculated, which can be one of the following values:<\/p>\n

    \n
  1. ‘DAY’: calculate the difference in days<\/li>\n
  2. ‘WEEK’: Calculate the difference in weeks.<\/li>\n
  3. Calculate the difference in months: ‘MONTH’.<\/li>\n
  4. ‘YEAR’: Calculate the difference in years.<\/li>\n<\/ol>\n

    start_date and end_date represent the start and end dates for calculating the difference.<\/p>\n

    For example, you can use the following statement to calculate the difference in days between two dates:<\/p>\n

    Calculate the difference in days between January 1, 2021 and January 10, 2021.<\/p>\n

    This will return 9, indicating that there are a total of 9 days from January 1, 2021 to January 10, 2021.<\/p>\n","protected":false},"excerpt":{"rendered":"

    The DATEDIFF function is a function in Oracle database used to calculate the difference between two dates. It can calculate the difference in days, weeks, months, or years between two dates. The DATEDIFF function uses the following syntax: Calculate the difference between the start date and end date in the specified unit. In this case, […]<\/p>\n","protected":false},"author":11,"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":[19064,19061,7418,19063,19065],"class_list":["post-14155","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-datediff-example","tag-oracle-date-difference","tag-oracle-date-functions","tag-oracle-datediff-function","tag-sql-date-calculation"],"yoast_head":"\nOracle DATEDIFF Function Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.\" \/>\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\/what-is-the-function-of-the-datediff-function-in-oracle\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle DATEDIFF Function Explained\" \/>\n<meta property=\"og:description\" content=\"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T08:34:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-06T04:38:06+00:00\" \/>\n<meta name=\"author\" content=\"Olivia Parker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Olivia Parker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\"},\"author\":{\"name\":\"Olivia Parker\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\"},\"headline\":\"Oracle DATEDIFF Function Explained\",\"datePublished\":\"2024-03-15T08:34:30+00:00\",\"dateModified\":\"2025-08-06T04:38:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\"},\"wordCount\":156,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"DATEDIFF example\",\"Oracle date difference\",\"Oracle date functions\",\"Oracle DATEDIFF function\",\"SQL date calculation\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\",\"name\":\"Oracle DATEDIFF Function Explained - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-15T08:34:30+00:00\",\"dateModified\":\"2025-08-06T04:38:06+00:00\",\"description\":\"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Oracle DATEDIFF Function Explained\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\",\"name\":\"Olivia Parker\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56c66f189ba32a6f9eb50f31a38fe774e2a725c213d4070835ccc51b8fbbc54b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56c66f189ba32a6f9eb50f31a38fe774e2a725c213d4070835ccc51b8fbbc54b?s=96&d=mm&r=g\",\"caption\":\"Olivia Parker\"},\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/oliviaparker\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Oracle DATEDIFF Function Explained - Blog - Silicon Cloud","description":"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/","og_locale":"en_US","og_type":"article","og_title":"Oracle DATEDIFF Function Explained","og_description":"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.","og_url":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-15T08:34:30+00:00","article_modified_time":"2025-08-06T04:38:06+00:00","author":"Olivia Parker","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Olivia Parker","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/"},"author":{"name":"Olivia Parker","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9"},"headline":"Oracle DATEDIFF Function Explained","datePublished":"2024-03-15T08:34:30+00:00","dateModified":"2025-08-06T04:38:06+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/"},"wordCount":156,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"keywords":["DATEDIFF example","Oracle date difference","Oracle date functions","Oracle DATEDIFF function","SQL date calculation"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/","url":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/","name":"Oracle DATEDIFF Function Explained - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-15T08:34:30+00:00","dateModified":"2025-08-06T04:38:06+00:00","description":"Learn how Oracle's DATEDIFF function calculates date differences in days, weeks, months, or years. Syntax and examples inside.","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-datediff-function-in-oracle\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Oracle DATEDIFF Function Explained"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9","name":"Olivia Parker","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56c66f189ba32a6f9eb50f31a38fe774e2a725c213d4070835ccc51b8fbbc54b?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56c66f189ba32a6f9eb50f31a38fe774e2a725c213d4070835ccc51b8fbbc54b?s=96&d=mm&r=g","caption":"Olivia Parker"},"url":"https:\/\/www.silicloud.com\/blog\/author\/oliviaparker\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/14155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=14155"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/14155\/revisions"}],"predecessor-version":[{"id":158178,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/14155\/revisions\/158178"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=14155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=14155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=14155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}