{"id":1349,"date":"2018-10-27T10:36:53","date_gmt":"2018-10-27T03:36:53","guid":{"rendered":"http:\/\/www.sqlitetutorial.net\/?page_id=1349"},"modified":"2024-10-25T14:50:34","modified_gmt":"2024-10-25T07:50:34","slug":"sqlite-string-functions","status":"publish","type":"page","link":"https:\/\/www.sqlitetutorial.net\/sqlite-string-functions\/","title":{"rendered":"SQLite String Functions"},"content":{"rendered":"\n<p>The following table shows the commonly used SQLite string functions that operate on an input string and return a new string or a numeric value.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Name<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-substr\/\">SUBSTR<\/a><\/td><td>Extract and return a substring with a predefined length starting at a specified position in a source string<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-trim\/\">TRIM<\/a><\/td><td>Return a copy of a string that has specified characters removed from the beginning and the end of a string.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-ltrim\/\">LTRIM<\/a><\/td><td>Return a copy of a string that has specified characters removed from the beginning of a string.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-rtrim\/\">RTRIM<\/a><\/td><td>Return a copy of a string that has specified characters removed from the end of a string.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-length\/\">LENGTH<\/a><\/td><td>Return the number of characters in a string or the number of bytes in a BLOB.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-replace-function\/\">REPLACE<\/a><\/td><td>Return a copy of a string with each instance of a substring replaced by another substring.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-upper\/\">UPPER<\/a><\/td><td>Return a copy of a string with all of the characters converted to uppercase.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-lower\/\">LOWER<\/a><\/td><td>Return a copy of a string with all the characters converted to lowercase.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-functions\/sqlite-instr\/\">INSTR<\/a><\/td><td>Find a substring in a string and return an integer indicating&nbsp;the position of the first occurrence of the substring.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-string-functions\/sqlite-concat\/\">Concatenation Operator<\/a> ||<\/td><td>Concatenate multiple strings into a single string.<\/td><\/tr><tr><td><a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-string-functions\/sqlite-concat_ws-function\/\">CONCAT_WS<\/a><\/td><td>Concatenate multiple string into a single string using a specified separator<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;INSTR<\/h3>\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\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">INSTR<\/span>(<span class=\"hljs-string\">'SQLite String Functions'<\/span>,<span class=\"hljs-string\">'Functions'<\/span>) <span class=\"hljs-keyword\">Position<\/span>;<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"97\" height=\"42\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-INSTR-function.png\" alt=\"SQLite string functions - INSTR function\" class=\"wp-image-2177\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;LENGTH<\/h3>\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\">LENGTH<\/span>(<span class=\"hljs-string\">'SQLite'<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"48\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-LENGTH-function.png\" alt=\"SQLite string functions - LENGTH function\" class=\"wp-image-2178\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;LOWER<\/h3>\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\">LOWER<\/span>(<span class=\"hljs-string\">'String Functions'<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"191\" height=\"41\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-LOWER-function.png\" alt=\"SQLite string functions - LOWER function\" class=\"wp-image-2179\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;LTRIM<\/h3>\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\">LTRIM<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>),\n   <span class=\"hljs-keyword\">LENGTH<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>) LengthBefore,\n   <span class=\"hljs-keyword\">LENGTH<\/span>(<span class=\"hljs-keyword\">LTRIM<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>)) LengthAfter;<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"387\" height=\"49\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-LTRIM-function.png\" alt=\"SQLite string functions - LTRIM function\" class=\"wp-image-2180\" srcset=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-LTRIM-function.png 387w, https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-LTRIM-function-300x38.png 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;RTRIM<\/h3>\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\">SELECT<\/span>\n   <span class=\"hljs-keyword\">RTRIM<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>),\n   <span class=\"hljs-keyword\">LENGTH<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>) LengthBefore,\n   <span class=\"hljs-keyword\">LENGTH<\/span>(<span class=\"hljs-keyword\">RTRIM<\/span>(<span class=\"hljs-string\">' SQLite '<\/span>)) LengthAfter;<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"388\" height=\"45\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-RTRIM-function.png\" alt=\"\" class=\"wp-image-2181\" srcset=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-RTRIM-function.png 388w, https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-RTRIM-function-300x35.png 300w\" sizes=\"auto, (max-width: 388px) 100vw, 388px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;REPLACE<\/h3>\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> \n    <span class=\"hljs-keyword\">REPLACE<\/span>(<span class=\"hljs-string\">'These are string functions'<\/span>, <span class=\"hljs-string\">'These'<\/span>, <span class=\"hljs-string\">'Those'<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"339\" height=\"48\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-REPLACE-function.png\" alt=\"SQLite string functions - REPLACE function\" class=\"wp-image-2176\" srcset=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-REPLACE-function.png 339w, https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-REPLACE-function-300x42.png 300w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;SUBSTR<\/h3>\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\">SUBSTR<\/span>(<span class=\"hljs-string\">'SQLite String Functions'<\/span>, <span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">6<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"254\" height=\"44\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-SUBSTR-function.png\" alt=\"SQLite string functions - SUBSTR function\" class=\"wp-image-2175\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;TRIM<\/h3>\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\">TRIM<\/span>(<span class=\"hljs-string\">' SQLite '<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"133\" height=\"44\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-TRIM-function.png\" alt=\"SQLite string functions - TRIM function\" class=\"wp-image-2174\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;UPPER<\/h3>\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\"><span class=\"hljs-keyword\">SELECT<\/span>\n    <span class=\"hljs-keyword\">UPPER<\/span>(<span class=\"hljs-string\">'String Functions'<\/span>);<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"190\" height=\"48\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-UPPER-function.png\" alt=\"SQLite string functions - UPPER function\" class=\"wp-image-2173\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Concatenation Operator ||<\/h3>\n\n\n\n<p>This example shows how to concatenate two strings into a single string:<\/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> <span class=\"hljs-string\">'Concatenation '<\/span> || <span class=\"hljs-string\">'Operator'<\/span>;<\/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<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"207\" height=\"47\" src=\"https:\/\/www.sqlitetutorial.net\/wp-content\/uploads\/2019\/08\/SQLite-string-functions-concatenation-operator-example.png\" alt=\"SQLite string functions - concatenation operator example\" class=\"wp-image-2172\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">CONCAT<\/h3>\n\n\n\n<p>The following statement uses the concat() function to concatenate multiple strings into a single string:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-11\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">SELECT concat(<span class=\"hljs-string\">'Hello'<\/span>, <span class=\"hljs-string\">','<\/span>, <span class=\"hljs-string\">' '<\/span>, <span class=\"hljs-string\">'World'<\/span>,<span class=\"hljs-string\">'!'<\/span>) message;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/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\">message\n-------------\nHello, World!<\/code><\/span><\/pre><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=\"1349\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqlitetutorial.net\/sqlite-string-functions\/\"\n\t\t\t\tdata-post-title=\"SQLite String Functions\"\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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