{"id":2464,"date":"2025-03-18T20:55:18","date_gmt":"2025-03-18T13:55:18","guid":{"rendered":"https:\/\/www.pgtutorial.com\/?page_id=2464"},"modified":"2025-03-21T20:34:16","modified_gmt":"2025-03-21T13:34:16","slug":"postgresql-extract","status":"publish","type":"page","link":"https:\/\/www.pgtutorial.com\/postgresql-date-functions\/postgresql-extract\/","title":{"rendered":"PostgreSQL EXTRACT Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: In this tutorial, you&#8217;ll learn to extract a date field such as year, month, or day from a date using the PostgreSQL <code>EXTRACT<\/code> function.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"postgresql-extract-function-overview\" id='postgresql-extract-function-overview'>PostgreSQL EXTRACT Function Overview <a href=\"#postgresql-extract-function-overview\" class=\"anchor\" id=\"postgresql-extract-function-overview\" title=\"Anchor for PostgreSQL EXTRACT Function Overview\">#<\/a><\/h2>\n\n\n\n<p>The <code>EXTRACT<\/code> function allows you to extract a date field from a date.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>EXTRACT<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\">EXTRACT(field <span class=\"hljs-keyword\">FROM<\/span> source)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this syntax:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>field<\/code>&nbsp;is a date field you want to extract. It can be a year, month, day, hour, minute, second, etc.<\/li>\n\n\n\n<li><code>source<\/code>&nbsp;is a date from which you want to extract a field. The date can be a&nbsp;<code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-time\/\">TIME<\/a><\/code>,&nbsp;<code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-date\/\">DATE<\/a><\/code>, or&nbsp;<code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-timestamp\/\">TIMESTAMP<\/a><\/code>&nbsp;value.<\/li>\n<\/ul>\n\n\n\n<p>The <code>EXTRACT<\/code> function returns a field value from the <code>source<\/code>. It returns <code>NULL<\/code> if either <code>field<\/code> or <code>source<\/code> is <code>NULL<\/code>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"basic-postgresql-extract-function-example\" id='basic-postgresql-extract-function-example'>Basic PostgreSQL EXTRACT Function Example <a href=\"#basic-postgresql-extract-function-example\" class=\"anchor\" id=\"basic-postgresql-extract-function-example\" title=\"Anchor for Basic PostgreSQL EXTRACT Function Example\">#<\/a><\/h2>\n\n\n\n<p>The following example uses the <code>EXTRACT<\/code> function to get the year, month, and date from the date&nbsp;<code>'2025-03-18'<\/code>:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">SELECT<\/span>\n  EXTRACT(\n    <span class=\"hljs-type\">YEAR<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      <span class=\"hljs-type\">DATE<\/span> <span class=\"hljs-string\">'2025-03-18'<\/span>\n  ) y,\n  EXTRACT(\n    <span class=\"hljs-type\">MONTH<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      <span class=\"hljs-type\">DATE<\/span> <span class=\"hljs-string\">'2025-03-18'<\/span>\n  ) m,\n  EXTRACT(\n    <span class=\"hljs-type\">DAY<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      <span class=\"hljs-type\">DATE<\/span> <span class=\"hljs-string\">'2025-03-18'<\/span>\n  ) d;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?q=U0VMRUNUIEVYVFJBQ1QoIFlFQVIgRlJPTSBEQVRFICcyMDI1LTAzLTE4JyApIHksIEVYVFJBQ1QoIE1PTlRIIEZST00gREFURSAnMjAyNS0wMy0xOCcgKSBtLCBFWFRSQUNUKCBEQVkgRlJPTSBEQVRFICcyMDI1LTAzLTE4JyApIGQ7\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\">  y   | m | d\n<span class=\"hljs-comment\">------+---+----<\/span>\n <span class=\"hljs-number\">2025<\/span> | <span class=\"hljs-number\">3<\/span> | <span class=\"hljs-number\">18<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" id=\"using-extract-function-with-table-data\" id='using-extract-function-with-table-data'>Using EXTRACT Function with Table Data <a href=\"#using-extract-function-with-table-data\" class=\"anchor\" id=\"using-extract-function-with-table-data\" title=\"Anchor for Using EXTRACT Function with Table Data\">#<\/a><\/h2>\n\n\n\n<p>Suppose we have the following <code>transactions<\/code> table:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"144\" height=\"208\" src=\"https:\/\/www.pgtutorial.com\/wp-content\/uploads\/2024\/12\/transactions.png\" alt=\"transactions\" class=\"wp-image-1054\"\/><\/figure>\n\n\n\n<p>The following example uses the <code>EXTRACT<\/code> function to extract year, month, and day from the&nbsp;<code>transaction_date<\/code>&nbsp;column of the&nbsp;<code>transactions<\/code>&nbsp;table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">SELECT<\/span>\n  transaction_id,\n  EXTRACT(\n    <span class=\"hljs-type\">YEAR<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      transaction_date\n  ) transaction_year,\n  EXTRACT(\n    <span class=\"hljs-type\">MONTH<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      transaction_date\n  ) transaction_month,\n  EXTRACT(\n    <span class=\"hljs-type\">DAY<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      transaction_date\n  ) transaction_day\n<span class=\"hljs-keyword\">FROM<\/span>\n  transactions;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?q=U0VMRUNUIHRyYW5zYWN0aW9uX2lkLCBFWFRSQUNUKCBZRUFSIEZST00gdHJhbnNhY3Rpb25fZGF0ZSApIHRyYW5zYWN0aW9uX3llYXIsIEVYVFJBQ1QoIE1PTlRIIEZST00gdHJhbnNhY3Rpb25fZGF0ZSApIHRyYW5zYWN0aW9uX21vbnRoLCBFWFRSQUNUKCBEQVkgRlJPTSB0cmFuc2FjdGlvbl9kYXRlICkgdHJhbnNhY3Rpb25fZGF5IEZST00gdHJhbnNhY3Rpb25zOw%3D%3D\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"> transaction_id | transaction_year | transaction_month | transaction_day\n<span class=\"hljs-comment\">----------------+------------------+-------------------+-----------------<\/span>\n              <span class=\"hljs-number\">1<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">1<\/span>\n              <span class=\"hljs-number\">2<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">1<\/span>\n              <span class=\"hljs-number\">3<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">1<\/span>\n              <span class=\"hljs-number\">4<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">2<\/span>\n              <span class=\"hljs-number\">5<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">2<\/span>\n              <span class=\"hljs-number\">6<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">2<\/span>\n              <span class=\"hljs-number\">7<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">2<\/span>\n              <span class=\"hljs-number\">8<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">3<\/span>\n              <span class=\"hljs-number\">9<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">3<\/span>\n             <span class=\"hljs-number\">10<\/span> |             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> |               <span class=\"hljs-number\">3<\/span>\n...<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" id=\"using-the-extract-function-with-aggregate-functions\" id='using-the-extract-function-with-aggregate-functions'>Using the EXTRACT Function with Aggregate Functions <a href=\"#using-the-extract-function-with-aggregate-functions\" class=\"anchor\" id=\"using-the-extract-function-with-aggregate-functions\" title=\"Anchor for Using the EXTRACT Function with Aggregate Functions\">#<\/a><\/h2>\n\n\n\n<p>The following example uses the <code>EXTRACT<\/code> function with the <code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-aggregate-functions\/postgresql-sum\/\">SUM<\/a><\/code> function and <code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-group-by\/\">GROUP BY<\/a><\/code> clause to get the total quantity received by year and month:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">SELECT<\/span>\n  EXTRACT(\n    <span class=\"hljs-type\">YEAR<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      transaction_date\n  ) transaction_year,\n  EXTRACT(\n    <span class=\"hljs-type\">MONTH<\/span>\n    <span class=\"hljs-keyword\">FROM<\/span>\n      transaction_date\n  ) transaction_month,\n  SUM(quantity) qty\n<span class=\"hljs-keyword\">FROM<\/span>\n  transactions\n<span class=\"hljs-keyword\">WHERE<\/span>\n  <span class=\"hljs-keyword\">type<\/span> = <span class=\"hljs-string\">'receipt'<\/span>\n<span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span>\n  transaction_year,\n  transaction_month;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?q=U0VMRUNUIEVYVFJBQ1QoIFlFQVIgRlJPTSB0cmFuc2FjdGlvbl9kYXRlICkgdHJhbnNhY3Rpb25feWVhciwgRVhUUkFDVCggTU9OVEggRlJPTSB0cmFuc2FjdGlvbl9kYXRlICkgdHJhbnNhY3Rpb25fbW9udGgsIFNVTShxdWFudGl0eSkgcXR5IEZST00gdHJhbnNhY3Rpb25zIFdIRVJFIHR5cGUgPSAncmVjZWlwdCcgR1JPVVAgQlkgdHJhbnNhY3Rpb25feWVhciwgdHJhbnNhY3Rpb25fbW9udGg7\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"> transaction_year | transaction_month | qty\n<span class=\"hljs-comment\">------------------+-------------------+-----<\/span>\n             <span class=\"hljs-number\">2024<\/span> |                <span class=\"hljs-number\">12<\/span> | <span class=\"hljs-number\">210<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" id=\"summary\" id='summary'>Summary <a href=\"#summary\" class=\"anchor\" id=\"summary\" title=\"Anchor for Summary\">#<\/a><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use the PostgreSQL <code>EXTRACT<\/code> function to extract a specific date field from a date.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id='quiz'>Quiz <a href=\"#quiz\" class=\"anchor\" id=\"quiz\" title=\"Anchor for Quiz\">#<\/a><\/h2>\n\n\n\n<iframe loading=\"lazy\"\n  name=\"quiz\"\n  src=\"\/quiz\/?quiz=extract\"\n  height=\"700\"\n  width=\"600\"\n  class=\"iframe\"\n><\/iframe>\n\n<div class=\"helpful-block-content\" 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PostgreSQL EXTRACT Function Overview # The EXTRACT function allows you to extract a date field from a date. Here&#8217;s the syntax of the EXTRACT function: In this syntax: The EXTRACT [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2440,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2464","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PostgreSQL EXTRACT Function<\/title>\n<meta name=\"description\" content=\"In this tutorial, you&#039;ll learn to extract a date field such as year, month, or day from a date using the PostgreSQL EXTRACT function.\" \/>\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.pgtutorial.com\/postgresql-date-functions\/postgresql-extract\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta 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