{"id":3096,"date":"2022-04-07T09:12:56","date_gmt":"2022-04-07T02:12:56","guid":{"rendered":"https:\/\/www.sqlservertutorial.net\/?page_id=3096"},"modified":"2022-04-09T17:29:46","modified_gmt":"2022-04-09T10:29:46","slug":"sql-server-revoke","status":"publish","type":"page","link":"https:\/\/www.sqlservertutorial.net\/sql-server-administration\/sql-server-revoke\/","title":{"rendered":"SQL Server REVOKE"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you&#8217;ll learn how to use the SQL Server <code>REVOKE<\/code> statement to remove the previously granted permissions from a principal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='introduction-to-the-sql-server-revoke-statement'>Introduction to the SQL Server REVOKE statement  <a href=\"#introduction-to-the-sql-server-revoke-statement\" class=\"anchor\" id=\"introduction-to-the-sql-server-revoke-statement\" title=\"Anchor for Introduction to the SQL Server REVOKE statement \">#<\/a><\/h2>\n\n\n\n<p>The <code>REVOKE<\/code> statement removes previously granted permissions on a securable from a principal. The following shows the syntax of the <code>REVOKE<\/code> statement:<\/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\"><span class=\"hljs-keyword\">REVOKE<\/span> permissions\n<span class=\"hljs-keyword\">ON<\/span> securable\n<span class=\"hljs-keyword\">FROM<\/span> principal;<\/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\"><li>First, specify one or more permissions in the <code>REVOKE<\/code> clause.<\/li><li>Second, specify a securable in the <code>ON<\/code> clause.<\/li><li>Third, specify a principle in the <code>FROM<\/code> clause.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id='sql-server-revoke-statement-example'>SQL Server REVOKE statement example <a href=\"#sql-server-revoke-statement-example\" class=\"anchor\" id=\"sql-server-revoke-statement-example\" title=\"Anchor for SQL Server REVOKE statement example\">#<\/a><\/h2>\n\n\n\n<p>To follow the example, you need to complete the <a href=\"https:\/\/www.sqlservertutorial.net\/sql-server-administration\/sql-server-grant\/\"><code>GRANT<\/code> statement example<\/a> that creates the user <code>peter<\/code> and grant the <code>SELECT<\/code>, <code>INSERT<\/code>, and <code>DELETE<\/code> permissions on the <code>People<\/code> table to the user <code>peter<\/code>.<\/p>\n\n\n\n<p>First, connect the SQL Server using the system administrator (<code>sa<\/code>) account and use the <code>REVOKE<\/code> statement to remove the <code>DELETE<\/code> permission on the People table from the user <code>peter<\/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\">REVOKE<\/span> <span class=\"hljs-keyword\">DELETE<\/span>\n<span class=\"hljs-keyword\">ON<\/span> People\n<span class=\"hljs-keyword\">FROM<\/span> peter;<\/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>Second, connect to the SQL Server using the user <code>peter<\/code> and issue the <code>DELETE<\/code> statement to verify the permission:<\/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\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> People;<\/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>Error:<\/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\">The <span class=\"hljs-keyword\">DELETE<\/span> permission was denied <span class=\"hljs-keyword\">on<\/span> the <span class=\"hljs-keyword\">object<\/span> <span class=\"hljs-string\">'People'<\/span>, <span class=\"hljs-keyword\">database<\/span> <span class=\"hljs-string\">'HR'<\/span>, <span class=\"hljs-keyword\">schema<\/span> <span class=\"hljs-string\">'dbo'<\/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>It works as expected.<\/p>\n\n\n\n<p>Third, select data from the <code>People<\/code> table:<\/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\">SELECT<\/span> * <span class=\"hljs-keyword\">FROM<\/span> People;<\/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>Fourth, remove the <code>SELECT<\/code> and <code>UPDATE<\/code> permissions on the <code>People<\/code> table from the user <code>peter<\/code>:<\/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\">REVOKE<\/span> <span class=\"hljs-keyword\">SELECT<\/span>, <span class=\"hljs-keyword\">INSERT<\/span>\n<span class=\"hljs-keyword\">ON<\/span> People\n<span class=\"hljs-keyword\">FROM<\/span> peter;<\/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>Finally, switch the connection to the user <code>peter<\/code> and select data from the <code>People<\/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\">SELECT<\/span> * <span class=\"hljs-keyword\">FROM<\/span> People;<\/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>Error:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\">The SELECT permission was denied on the object 'People', database 'HR', schema 'dbo'.<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><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 error indicates that the revoke was executed successfully.<\/p>\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\"><li>Use SQL Server <code>REVOKE<\/code> statement to remove the previously granted permissions on a securable from a principal.<\/li><\/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=\"3096\"\n\t\t\t\tdata-post-url=\"https:\/\/www.sqlservertutorial.net\/sql-server-administration\/sql-server-revoke\/\"\n\t\t\t\tdata-post-title=\"SQL Server REVOKE\"\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 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