{"id":3810,"date":"2024-04-07T18:45:20","date_gmt":"2024-04-07T11:45:20","guid":{"rendered":"https:\/\/www.sqlservertutorial.net\/?page_id=3810"},"modified":"2024-04-07T18:54:12","modified_gmt":"2024-04-07T11:54:12","slug":"sql-server-tan","status":"publish","type":"page","link":"https:\/\/www.sqlservertutorial.net\/sql-server-math-functions\/sql-server-tan\/","title":{"rendered":"SQL Server TAN() Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the SQL Server <code>TAN()<\/code> function to calculate the tangent\u00a0of a number.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='introduction-to-the-sql-server-tan-function'>Introduction to the SQL Server TAN() function <a href=\"#introduction-to-the-sql-server-tan-function\" class=\"anchor\" id=\"introduction-to-the-sql-server-tan-function\" title=\"Anchor for Introduction to the SQL Server TAN() function\">#<\/a><\/h2>\n\n\n\n<p>In SQL Server, the <code>TAN()<\/code> function is a <a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-math-functions\/\">math function<\/a> that returns the tangent\u00a0of a number. <\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>TAN()<\/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\">TAN(n)<\/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>n<\/code> is the angle in radians for which you want to find the tangent\u00a0value.<\/li>\n<\/ul>\n\n\n\n<p>The <code>TAN()<\/code> function returns the tangent\u00a0of the argument n. If n is <code>NULL<\/code>, the <code>TAN()<\/code> function returns <code>NULL<\/code>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='sql-server-tan-function-examples'>SQL Server TAN() function examples <a href=\"#sql-server-tan-function-examples\" class=\"anchor\" id=\"sql-server-tan-function-examples\" title=\"Anchor for SQL Server TAN() function examples\">#<\/a><\/h2>\n\n\n\n<p>Let&#8217;s take some examples of using the <code>TAN()<\/code> function.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id='1-basic-tan-function-example'>1) Basic TAN() function example <a href=\"#1-basic-tan-function-example\" class=\"anchor\" id=\"1-basic-tan-function-example\" title=\"Anchor for 1) Basic TAN() function example\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the <code>TAN()<\/code> function to calculate the tangent\u00a0of 1 radian:<\/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\">TAN<\/span>(<span class=\"hljs-number\">1<\/span>) tangent_value;<\/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\">tangent_value\r\n<span class=\"hljs-comment\">------------------<\/span>\r\n1.5574077246549023\r<\/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<h3 class=\"wp-block-heading\" id='2-using-the-tan-function-with-pi-function'>2) Using the TAN() function with PI() function <a href=\"#2-using-the-tan-function-with-pi-function\" class=\"anchor\" id=\"2-using-the-tan-function-with-pi-function\" title=\"Anchor for 2) Using the TAN() function with PI() function\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the <code>TAN()<\/code> function to find the tangent\u00a0of pi\/4:<\/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\">ROUND<\/span>(<span class=\"hljs-keyword\">TAN<\/span>(<span class=\"hljs-keyword\">PI<\/span>()\/<span class=\"hljs-number\">4<\/span>),<span class=\"hljs-number\">0<\/span>) tangent_value;<\/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\">tangent_value\r\n<span class=\"hljs-comment\">-------------<\/span>\r\n1.0\r<\/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<h3 class=\"wp-block-heading\" id='3-using-tan-function-with-table-data'>3) Using TAN() function with table data <a href=\"#3-using-tan-function-with-table-data\" class=\"anchor\" id=\"3-using-tan-function-with-table-data\" title=\"Anchor for 3) Using TAN() function with table data\">#<\/a><\/h3>\n\n\n\n<p>First, <a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-basics\/sql-server-create-table\/\">create a table<\/a> called <code>angles<\/code> to store angles in radians:<\/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\">CREATE<\/span> <span class=\"hljs-keyword\">TABLE<\/span> angles(\n    <span class=\"hljs-keyword\">id<\/span> <span class=\"hljs-built_in\">INT<\/span> <span class=\"hljs-keyword\">IDENTITY<\/span> PRIMARY <span class=\"hljs-keyword\">KEY<\/span>,\n    angle <span class=\"hljs-built_in\">DEC<\/span>(<span class=\"hljs-number\">19<\/span>,<span class=\"hljs-number\">2<\/span>)\n);<\/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>Second, <a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-basics\/sql-server-insert-multiple-rows\/\">insert some rows<\/a> into the <code>angles<\/code> table:<\/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\"><span class=\"hljs-keyword\">INSERT<\/span> <span class=\"hljs-keyword\">INTO<\/span>\n  angles (angle)\n<span class=\"hljs-keyword\">VALUES<\/span>\n  (<span class=\"hljs-number\">0<\/span>),\n  (<span class=\"hljs-keyword\">PI<\/span>() \/ <span class=\"hljs-number\">4<\/span>),\n  (<span class=\"hljs-keyword\">PI<\/span>());<\/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>Third, retrieve data from the <code>angles<\/code> table:<\/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>\n  <span class=\"hljs-keyword\">id<\/span>,\n  angle\n<span class=\"hljs-keyword\">FROM<\/span>\n  angles;<\/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>Output:<\/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\">id | angle\n<span class=\"hljs-comment\">---+-------<\/span>\n1  | 1.00\n2  | 1.57\n3  | 0.52\n(3 rows)<\/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<p>Finally, calculate the tangents of angles from the <code>angles<\/code> table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-10\" 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>\r\n  <span class=\"hljs-keyword\">id<\/span>,\r\n  angle,\r\n  <span class=\"hljs-keyword\">ROUND<\/span>(<span class=\"hljs-keyword\">TAN<\/span>(angle), <span class=\"hljs-number\">0<\/span>) tangent_value\r\n<span class=\"hljs-keyword\">FROM<\/span>\r\n  angles;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-10\"><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-11\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">id | angle | tangent_value\r\n<span class=\"hljs-comment\">---+-------+--------------<\/span>\r\n1  | 0.00  | 0.0\r\n2  | 0.79  | 1.0\r\n3  | 3.14  | 0.0\r\n(3 rows)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><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 <code>TAN()<\/code> function to calculate the tangent of a number.<\/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 class=\"wth-thumbs\">\n\t\t\t<button\n\t\t\t\tdata-post=\"3810\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqlservertutorial.net\/sql-server-math-functions\/sql-server-tan\/\"\n\t\t\t\tdata-post-title=\"SQL Server TAN() Function\"\n\t\t\t\tdata-response=\"1\"\n\t\t\t\tclass=\"wth-btn-rounded wth-yes-btn\"\n\t\t\t>\n\t\t\t\t<svg\n\t\t\t\t\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\t\t\t\t\tviewBox=\"0 0 24 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number.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3680,"menu_order":16,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3810","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>SQL Server TAN() Function<\/title>\n<meta name=\"description\" content=\"In this tutorial, you will learn how to use the SQL Server TAN() function to calculate the tangent of a number.\" \/>\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.sqlservertutorial.net\/sql-server-math-functions\/sql-server-tan\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Server TAN() Function\" 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