{"id":3128,"date":"2025-01-27T22:14:11","date_gmt":"2025-01-28T05:14:11","guid":{"rendered":"https:\/\/www.sqltutorial.org\/?page_id=3128"},"modified":"2025-02-04T06:58:29","modified_gmt":"2025-02-04T13:58:29","slug":"sql-lpad","status":"publish","type":"page","link":"https:\/\/www.sqltutorial.org\/sql-string-functions\/sql-lpad\/","title":{"rendered":"SQL LPAD Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you&#8217;ll learn how to use the SQL <code>LPAD<\/code> function to pad a specified set of characters on the left of a string to a certain length.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='introduction-to-the-sql-lpad-function'>Introduction to the SQL LPAD function <a href=\"#introduction-to-the-sql-lpad-function\" class=\"anchor\" id=\"introduction-to-the-sql-lpad-function\" title=\"Anchor for Introduction to the SQL LPAD function\">#<\/a><\/h2>\n\n\n\n<p><code>LPAD<\/code> stands for the left pad. The <code>LPAD<\/code> function lets you pad a string with specified characters on the left to a certain length.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>LPAD<\/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\">LPAD(string, length, pad_string)<\/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>The <code>LPAD<\/code> function takes three parameters:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>string<\/code>: The input string you want to pad.<\/li>\n\n\n\n<li><code>length<\/code>: The length of the resulting string after padding.<\/li>\n\n\n\n<li><code>pad_string<\/code>: The string to use for padding. If you omit it, the function will use spaces by default.<\/li>\n<\/ul>\n\n\n\n<p>The <code>LPAD<\/code> function returns a new string with the <code>pad_string<\/code> padded on the left of the input string. It ensures that the result string has a certain <code>length<\/code>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='basic-sql-lpad-function-example'>Basic SQL LPAD function example <a href=\"#basic-sql-lpad-function-example\" class=\"anchor\" id=\"basic-sql-lpad-function-example\" title=\"Anchor for Basic SQL LPAD function example\">#<\/a><\/h2>\n\n\n\n<p>The following query uses the <code>LPAD<\/code> function to pad zero on the left of the string <code>'123'<\/code> to a string with a length of <code>6<\/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\">LPAD<\/span>(<span class=\"hljs-string\">'123'<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-string\">'0'<\/span>) <span class=\"hljs-keyword\">result<\/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><a href=\"https:\/\/www.sqltutorial.org\/playground\/?q=U0VMRUNUIExQQUQoJzEyMycsIDYsICcwJykgcmVzdWx0Ow%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-3\" data-shcb-language-name=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\"> result\n--------\n 000123<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">plaintext<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">plaintext<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The length of the string <code>'123'<\/code> is <code>3<\/code>, so the <code>LPAD<\/code> function pads three zeros to make the length of the result string 6.<\/p>\n\n\n\n<p>The following example uses the <code>LPAD<\/code> function to pad zeros to the left of the string <code>'123456'<\/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> <span class=\"hljs-keyword\">LPAD<\/span>(<span class=\"hljs-string\">'123456'<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-string\">'0'<\/span>) <span class=\"hljs-keyword\">result<\/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><a href=\"https:\/\/www.sqltutorial.org\/playground\/?q=U0VMRUNUIExQQUQoJzEyMzQ1NicsIDYsICcwJykgcmVzdWx0Ow%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=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\"> result\n--------\n 123456<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">plaintext<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">plaintext<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Since the input string already has a length of 6, the result string will not have any padded zero.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='padding-employee-ids'>Padding employee IDs <a href=\"#padding-employee-ids\" class=\"anchor\" id=\"padding-employee-ids\" title=\"Anchor for Padding employee IDs\">#<\/a><\/h2>\n\n\n\n<p>We&#8217;ll use the <code>employees<\/code> table from the <a href=\"https:\/\/www.sqltutorial.org\/sql-sample-database\/\">sample database<\/a>:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"169\" height=\"273\" src=\"https:\/\/www.sqltutorial.org\/wp-content\/uploads\/2016\/03\/employees.png\" alt=\"SQL POSITION Function\" class=\"wp-image-237\"\/><\/figure>\n\n\n\n<p>The following query uses the <code>LPAD<\/code> function to generate a report where employee IDs are five characters long and padded with leading zeros:<\/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>\n  employee_id,\n  <span class=\"hljs-keyword\">LPAD<\/span>(<span class=\"hljs-keyword\">CAST<\/span>(employee_id <span class=\"hljs-keyword\">AS<\/span> <span class=\"hljs-built_in\">TEXT<\/span>), <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-string\">'0'<\/span>) padded_employee_id\n<span class=\"hljs-keyword\">FROM<\/span>\n  employees;<\/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><a href=\"https:\/\/www.sqltutorial.org\/playground\/?q=U0VMRUNUIGVtcGxveWVlX2lkLCBMUEFEKENBU1QoZW1wbG95ZWVfaWQgQVMgVEVYVCksIDUsICcwJykgcGFkZGVkX2VtcGxveWVlX2lkIEZST00gZW1wbG95ZWVzOw%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-7\" data-shcb-language-name=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\"> employee_id | padded_employee_id\n-------------+--------------------\n         100 | 00100\n         101 | 00101\n         102 | 00102\n         103 | 00103<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">plaintext<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">plaintext<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>How it works:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First, cast integers to text explicitly using the <code>CAST<\/code> function.<\/li>\n\n\n\n<li>Second, pad the employee ID with leading zeros using the <code>LPAD<\/code> function.<\/li>\n<\/ul>\n\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>LPAD<\/code> function to pad a string on the left with specified characters to a certain length.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id='databases'>Databases <a href=\"#databases\" class=\"anchor\" id=\"databases\" title=\"Anchor for Databases\">#<\/a><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.pgtutorial.com\/postgresql-string-functions\/postgresql-lpad\/\" target=\"_blank\" rel=\"noreferrer noopener\">PostgreSQL LPAD Function<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.mysqltutorial.org\/mysql-string-functions\/mysql-lpad\/\" target=\"_blank\" rel=\"noreferrer noopener\">MySQL LPAD Function<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.oracletutorial.com\/oracle-string-functions\/oracle-lpad\/\" target=\"_blank\" rel=\"noreferrer noopener\">Oracle LPAD Function<\/a><\/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=\"3128\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqltutorial.org\/sql-string-functions\/sql-lpad\/\"\n\t\t\t\tdata-post-title=\"SQL LPAD Function\"\n\t\t\t\tdata-response=\"1\"\n\t\t\t\tclass=\"wth-btn-rounded 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