{"id":1500,"date":"2018-07-20T20:49:12","date_gmt":"2018-07-21T03:49:12","guid":{"rendered":"https:\/\/sqltutorial.org\/?page_id=1500"},"modified":"2025-01-21T00:37:54","modified_gmt":"2025-01-21T07:37:54","slug":"sql-dateadd","status":"publish","type":"page","link":"https:\/\/www.sqltutorial.org\/sql-date-functions\/sql-dateadd\/","title":{"rendered":"SQL DATEADD Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the SQL <code>DATEADD()<\/code> function to add an interval to a date.<\/p>\n\n\n\n<p class=\"note\">Note that the <code><a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-date-functions\/sql-server-dateadd-function\/\" target=\"_blank\" rel=\"noreferrer noopener\">DATEADD<\/a><\/code> function is not included in SQL Standard and only SQL Server supports it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='introduction-to-the-sql-dateadd-function'>Introduction to the SQL DATEADD Function <a href=\"#introduction-to-the-sql-dateadd-function\" class=\"anchor\" id=\"introduction-to-the-sql-dateadd-function\" title=\"Anchor for Introduction to the SQL DATEADD Function\">#<\/a><\/h2>\n\n\n\n<p>To add an interval e.g., a year, a month and a day to date, you use the SQL <code>DATEADD()<\/code> function. <\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>DATEADD<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">DATEADD (datepart , number , date )<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/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>datepart<\/code> is the part of the date to which an interval is added.<\/li>\n\n\n\n<li><code>number<\/code> is a literal integer or an expression that evaluates to an integer which function adds to the <code>datepart<\/code> of <code>date<\/code>.<\/li>\n\n\n\n<li><code>date<\/code> is the date to which the function add the interval. It can be a literal or an expression that evaluates to a <code>DATE<\/code> or <code>DATETIME<\/code> value.<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<p>The <code>DATEADD()<\/code> function returns the data type that is the same as the data type of the <code>date<\/code> argument.<\/p>\n\n\n\n<p>The following table shows the valid values for the <code>datepart<\/code>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><em>Valid Date Part<\/em><\/th><th>Abbreviations<\/th><\/tr><\/thead><tbody><tr><td>year<\/td><td>yy,&nbsp;yyyy<\/td><\/tr><tr><td>quarter<\/td><td>qq,&nbsp;q<\/td><\/tr><tr><td>month<\/td><td>mm,&nbsp;m<\/td><\/tr><tr><td>dayofyear<\/td><td>dy,&nbsp;y<\/td><\/tr><tr><td>day<\/td><td>dd,&nbsp;d<\/td><\/tr><tr><td>week<\/td><td>wk,&nbsp;ww<\/td><\/tr><tr><td>weekday<\/td><td>dw,&nbsp;w<\/td><\/tr><tr><td>hour<\/td><td>hh<\/td><\/tr><tr><td>minute<\/td><td>mi,&nbsp;n<\/td><\/tr><tr><td>second<\/td><td>ss,&nbsp;s<\/td><\/tr><tr><td>millisecond<\/td><td>ms<\/td><\/tr><tr><td>microsecond<\/td><td>mcs<\/td><\/tr><tr><td>nanosecond<\/td><td>ns<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id='sql-dateadd-function-examples'>SQL DATEADD Function Examples <a href=\"#sql-dateadd-function-examples\" class=\"anchor\" id=\"sql-dateadd-function-examples\" title=\"Anchor for SQL DATEADD Function Examples\">#<\/a><\/h2>\n\n\n\n<p>The following query uses the <code>DATEADD()<\/code> function to add one year to a date:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">DATEADD<\/span>(<span class=\"hljs-keyword\">year<\/span>, <span class=\"hljs-number\">1<\/span>, <span class=\"hljs-string\">'2018-01-01'<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">2019-01-01 00:00:00.000<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The following example uses the <code>DATEADD()<\/code> function to add two months to a date:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">DATEADD<\/span>(<span class=\"hljs-keyword\">month<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-string\">'2018-01-01'<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">2018-03-01 00:00:00.000<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The following example uses the <code>DATEADD()<\/code> fucntion to add 30 days to a date:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">DATEADD<\/span>(<span class=\"hljs-keyword\">day<\/span>, <span class=\"hljs-number\">30<\/span>, <span class=\"hljs-string\">'2018-01-01'<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">2018-01-31 00:00:00.000<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Besides adding an interval to a date, you can use the <code>DATEADD()<\/code> function to subtract an interval from a date. For example:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">DATEADD<\/span>(<span class=\"hljs-keyword\">day<\/span>,<span class=\"hljs-number\">-1<\/span>,<span class=\"hljs-string\">'2018-01-01'<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, we subtract one day from a date of <code>January 1st, 2018<\/code> that returns the following result:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-9\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">2017-12-31 00:00:00.000<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-9\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" 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 SQL <code>DATEADD()<\/code> function to add an interval to a date.<\/li>\n<\/ul>\n<div class=\"helpful-block-content\" data-title=\"\">\n\t<header>\n\t\t<div class=\"wth-question\">Was this tutorial helpful ?<\/div>\n\t\t<div 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