{"id":1182,"date":"2019-02-17T10:03:23","date_gmt":"2019-02-17T03:03:23","guid":{"rendered":"http:\/\/www.sqlservertutorial.net\/?page_id=1182"},"modified":"2024-03-02T18:46:32","modified_gmt":"2024-03-02T11:46:32","slug":"sql-server-charindex-function","status":"publish","type":"page","link":"https:\/\/www.sqlservertutorial.net\/sql-server-string-functions\/sql-server-charindex-function\/","title":{"rendered":"SQL Server CHARINDEX() Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the SQL Server <code>CHARINDEX()<\/code> function to search for a substring in a string.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='sql-server-charindex-function-overview'>SQL Server CHARINDEX() function overview <a href=\"#sql-server-charindex-function-overview\" class=\"anchor\" id=\"sql-server-charindex-function-overview\" title=\"Anchor for SQL Server CHARINDEX() function overview\">#<\/a><\/h2>\n\n\n\n<p>SQL Server <code>CHARINDEX()<\/code> function searches for a substring inside a string starting from a specified location. It returns the position of the substring found in the searched string, or zero if the substring is not found. The starting position returned is 1-based, not 0-based.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>CHARINDEX()<\/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\">CHARINDEX(substring, string &#91;, start_location])<\/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>substring<\/code> is the substring to search for. Its length is limited to 8,000 characters.<\/li>\n\n\n\n<li><code>string<\/code> can be a literal string, expression, or column. It is a string to search.<\/li>\n\n\n\n<li><code>start_location<\/code> is the location at which the search starts. The <code>start_location<\/code> is an integer, big integer, or an expression\u00a0that evaluates to a value of those <a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-basics\/sql-server-data-types\/\">data types<\/a>.<\/li>\n<\/ul>\n\n\n\n<p>The <code>start_location<\/code> parameter is optional. If it is skipped, zero, or negative value, the search starts at the beginning of the <code>string<\/code>.<\/p>\n\n\n\n<p>Note that the <code>CHARINDEX()<\/code> function can perform both case-sensitive and case-insensitive searches based on the specified collation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='sql-server-charindex-function-examples'>SQL Server CHARINDEX() function examples <a href=\"#sql-server-charindex-function-examples\" class=\"anchor\" id=\"sql-server-charindex-function-examples\" title=\"Anchor for SQL Server CHARINDEX() function examples\">#<\/a><\/h2>\n\n\n\n<p>Let&#8217;s take some examples of using the <code>CHARINDEX()<\/code> function.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id='1-using-sql-server-charindex-to-perform-a-single-search'>1) Using SQL Server CHARINDEX() to perform a single search <a href=\"#1-using-sql-server-charindex-to-perform-a-single-search\" class=\"anchor\" id=\"1-using-sql-server-charindex-to-perform-a-single-search\" title=\"Anchor for 1) Using SQL Server CHARINDEX() to perform a single search\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the <code>CHARINDEX()<\/code> function to perform a simple search of the string <code>'SQL'<\/code> in the <code>'SQL Server CHARINDEX'<\/code><\/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> \n    <span class=\"hljs-keyword\">CHARINDEX<\/span>(<span class=\"hljs-string\">'SQL'<\/span>, <span class=\"hljs-string\">'SQL Server CHARINDEX'<\/span>) <span class=\"hljs-keyword\">position<\/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>Here is the output:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">position\n-----------\n1\n\n(1 row affected)<\/code><\/span><\/pre>\n\n\n<h3 class=\"wp-block-heading\" id='2-using-the-charindex-function-to-perform-a-case-insensitive-search'>2) Using the CHARINDEX() function to perform a case-insensitive search <a href=\"#2-using-the-charindex-function-to-perform-a-case-insensitive-search\" class=\"anchor\" id=\"2-using-the-charindex-function-to-perform-a-case-insensitive-search\" title=\"Anchor for 2) Using the CHARINDEX() function to perform a case-insensitive search\">#<\/a><\/h3>\n\n\n\n<p>This statement shows how to use the CHARINDEX() function to perform a case-insensitive search for the string <code>'SERVER'<\/code> in <code>'SQL Server CHARINDEX'<\/code>:<\/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\"><span class=\"hljs-keyword\">SELECT<\/span> \n    <span class=\"hljs-keyword\">CHARINDEX<\/span>(\n        <span class=\"hljs-string\">'SERVER'<\/span>, \n        <span class=\"hljs-string\">'SQL Server CHARINDEX'<\/span>\n    ) <span class=\"hljs-keyword\">position<\/span>;<\/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>Output:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">position\n-----------\n5\n\n(1 row affected)<\/code><\/span><\/pre>\n\n\n<h3 class=\"wp-block-heading\" id='3-using-the-charindex-function-to-perform-a-case-sensitive-search'>3) Using the CHARINDEX() function to perform a case-sensitive search <a href=\"#3-using-the-charindex-function-to-perform-a-case-sensitive-search\" class=\"anchor\" id=\"3-using-the-charindex-function-to-perform-a-case-sensitive-search\" title=\"Anchor for 3) Using the CHARINDEX() function to perform a case-sensitive search\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the CHARINDEX() function to perform a case-sensitive search for the string <code>'SERVER'<\/code> in the string <code>SQL Server CHARINDEX<\/code>.<\/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> \n    <span class=\"hljs-keyword\">CHARINDEX<\/span>(\n        <span class=\"hljs-string\">'SERVER'<\/span>, \n        <span class=\"hljs-string\">'SQL Server CHARINDEX'<\/span> \n        <span class=\"hljs-keyword\">COLLATE<\/span> Latin1_General_CS_AS\n    ) <span class=\"hljs-keyword\">position<\/span>;\n<\/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\"><span><code class=\"hljs\">position\n-----------\n0\n\n(1 row affected)<\/code><\/span><\/pre>\n\n\n<h3 class=\"wp-block-heading\" id='4-using-the-charindex-function-to-search-for-a-nonexistent-substring'>4) Using the CHARINDEX() function to search for a nonexistent substring <a href=\"#4-using-the-charindex-function-to-search-for-a-nonexistent-substring\" class=\"anchor\" id=\"4-using-the-charindex-function-to-search-for-a-nonexistent-substring\" title=\"Anchor for 4) Using the CHARINDEX() function to search for a nonexistent substring\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the CHARINDEX() function to search for the substring <code>'needle'<\/code> in the string <code>'This is a haystack'<\/code>:<\/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\"><span class=\"hljs-keyword\">DECLARE<\/span> @haystack <span class=\"hljs-built_in\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>);  \n<span class=\"hljs-keyword\">SELECT<\/span> @haystack = <span class=\"hljs-string\">'This is a haystack'<\/span>;  \n<span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">CHARINDEX<\/span>(<span class=\"hljs-string\">'needle'<\/span>, @haystack);  <\/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>Output:<\/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\">position\n<span class=\"hljs-comment\">-----------<\/span>\n0\n\n(1 row affected)\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<h3 class=\"wp-block-heading\" id='5-using-the-charindex-function-to-search-from-a-specific-position'>5) Using the CHARINDEX() function to search from a specific position <a href=\"#5-using-the-charindex-function-to-search-from-a-specific-position\" class=\"anchor\" id=\"5-using-the-charindex-function-to-search-from-a-specific-position\" title=\"Anchor for 5) Using the CHARINDEX() function to search from a specific position\">#<\/a><\/h3>\n\n\n\n<p>This example uses the <code>start_location<\/code> parameter to start the search for <code>'is'<\/code> at the fifth and tenth character of the string <code>'This is a my sister'<\/code>:<\/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\">SELECT<\/span> \n    <span class=\"hljs-keyword\">CHARINDEX<\/span>(<span class=\"hljs-string\">'is'<\/span>,<span class=\"hljs-string\">'This is a my sister'<\/span>,<span class=\"hljs-number\">5<\/span>) start_at_fifth,\n    <span class=\"hljs-keyword\">CHARINDEX<\/span>(<span class=\"hljs-string\">'is'<\/span>,<span class=\"hljs-string\">'This is a my sister'<\/span>,<span class=\"hljs-number\">10<\/span>) start_at_tenth;<\/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>Here is the output:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">start_at_fifth start_at_tenth\n-------------- --------------\n6              15\n\n(1 row affected)<\/code><\/span><\/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 Server <code>CHARINDEX()<\/code> function to search for a substring in a string starting from a specified location and return the position of the substring.<\/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=\"1182\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqlservertutorial.net\/sql-server-string-functions\/sql-server-charindex-function\/\"\n\t\t\t\tdata-post-title=\"SQL Server CHARINDEX() 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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