{"id":1905,"date":"2019-08-18T18:39:18","date_gmt":"2019-08-18T11:39:18","guid":{"rendered":"http:\/\/www.sqlitetutorial.net\/?page_id=1905"},"modified":"2022-04-03T15:06:44","modified_gmt":"2022-04-03T08:06:44","slug":"sqlite-drop-view","status":"publish","type":"page","link":"https:\/\/www.sqlitetutorial.net\/sqlite-drop-view\/","title":{"rendered":"SQLite DROP VIEW"},"content":{"rendered":"\r\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the SQLite <code>DROP VIEW<\/code> statement to remove a view from its database schema.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Introduction to SQLite DROP VIEW statement<\/h2>\r\n\r\n\r\n\r\n<p>The <code>DROP VIEW<\/code> statement deletes a view from the database schema. Here is the basic syntax of the <code>DROP VIEW<\/code> statement:<\/p>\r\n\r\n\r\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\">DROP<\/span> <span class=\"hljs-keyword\">VIEW<\/span> &#91;<span class=\"hljs-keyword\">IF<\/span> <span class=\"hljs-keyword\">EXISTS<\/span>] &#91;schema_name.]view_name;<\/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>\r\n\r\n\r\n<p>In this syntax:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\"><li>First, specify the name of the view that you wants to remove after the <code>DROP VIEW<\/code> keywords.<\/li><li>Second, specify the schema of the view that you want to delete.<\/li><li>Third, use the <code>IF EXISTS<\/code> option to remove a view only if it exists. If the view does not exist, the <code>DROP VIEW IF EXISTS<\/code> statement does nothing. However, trying to drop a non-existing view without the <code>IF EXISTS<\/code> option will result in an error.<\/li><\/ul>\r\n\r\n\r\n\r\n<p>Note that the <code>DROP VIEW<\/code> statement only removes the view object from the database schema. It does not remove the data of the base tables.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">SQLite DROP VIEW statement examples<\/h2>\r\n\r\n\r\n\r\n<p>This statement <a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-create-view\/\">creates a view<\/a> that summarizes data from the <code>invoices<\/code> and <code>invoice_items<\/code> in the <a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-sample-database\/\">sample database<\/a>:<\/p>\r\n\r\n\r\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\">CREATE<\/span> <span class=\"hljs-keyword\">VIEW<\/span> v_billings (\r\n    invoiceid,\r\n    invoicedate,\r\n    total\r\n)\r\n<span class=\"hljs-keyword\">AS<\/span>\r\n    <span class=\"hljs-keyword\">SELECT<\/span> invoiceid,\r\n           invoicedate,\r\n           <span class=\"hljs-keyword\">sum<\/span>(unit_price * quantity) \r\n      <span class=\"hljs-keyword\">FROM<\/span> invoices\r\n           <span class=\"hljs-keyword\">INNER<\/span> <span class=\"hljs-keyword\">JOIN<\/span>\r\n           invoice_items <span class=\"hljs-keyword\">USING<\/span> (\r\n               invoice_id\r\n           );\r\n<\/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>\r\n\r\n\r\n<p>To delete the <code>v_billings<\/code> view, you use the following <code>DROP VIEW<\/code> statement:<\/p>\r\n\r\n\r\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\">DROP<\/span> <span class=\"hljs-keyword\">VIEW<\/span> v_billings;<\/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>\r\n\r\n\r\n<p>This example uses the <code>IF EXISTS<\/code> option to delete a non-existing view:<\/p>\r\n\r\n\r\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\">DROP<\/span> <span class=\"hljs-keyword\">VIEW<\/span> <span class=\"hljs-keyword\">IF<\/span> <span class=\"hljs-keyword\">EXISTS<\/span> v_xyz;<\/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>\r\n\r\n\r\n<p>It does not return any error. However, if you don&#8217;t use the <code>IF EXISTS<\/code> option like the following example, you will get an error:<\/p>\r\n\r\n\r\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\">DROP<\/span> <span class=\"hljs-keyword\">VIEW<\/span> v_xyz;\r\n<\/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>\r\n\r\n\r\n<p>Here is the error message:<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-preformatted lang:mysql highlight:0 decode:true\">Error while executing SQL query on database 'chinook': no such view: v_xyz<\/code><\/pre>\r\n\r\n\r\n\r\n<p>In this tutorial, you have learned how to use the SQLite <code>DROP VIEW<\/code> statement to remove a view from its database schema.<\/p>\r\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=\"1905\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqlitetutorial.net\/sqlite-drop-view\/\"\n\t\t\t\tdata-post-title=\"SQLite DROP VIEW\"\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 24\"\n\t\t\t\t\tfill=\"none\"\n\t\t\t\t\tstroke=\"currentColor\"\n\t\t\t\t\tstroke-width=\"2\"\n\t\t\t\t\tstroke-linecap=\"round\"\n\t\t\t\t\tstroke-linejoin=\"round\"\n\t\t\t\t\tclass=\"feather feather-thumbs-up block w-full h-full\"\n\t\t\t\t>\n\t\t\t\t\t<path\n\t\t\t\t\t\td=\"M14 9V5a3 3 0 0 0-3-3l-4 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