{"id":158,"date":"2024-11-19T20:09:31","date_gmt":"2024-11-19T13:09:31","guid":{"rendered":"https:\/\/www.pgtutorial.com\/?page_id=158"},"modified":"2024-11-27T11:14:32","modified_gmt":"2024-11-27T04:14:32","slug":"postgresql-delete","status":"publish","type":"page","link":"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-delete\/","title":{"rendered":"PostgreSQL DELETE Statement: Removing Data from a Table"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you&#8217;ll learn how to use the PostgreSQL <code>DELETE<\/code> statement to delete one or more rows from a table.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='postgresql-delete-statement'>PostgreSQL DELETE statement <a href=\"#postgresql-delete-statement\" class=\"anchor\" id=\"postgresql-delete-statement\" title=\"Anchor for PostgreSQL DELETE statement\">#<\/a><\/h2>\n\n\n\n<p>The PostgreSQL&nbsp;<code>DELETE<\/code>&nbsp;statement is a powerful tool that permanently removes one or more rows from a table.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>DELETE<\/code> statement:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> <span class=\"hljs-built_in\">table_name<\/span>\n<span class=\"hljs-keyword\">WHERE<\/span> condition;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/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>First, specify the table name for which you want to delete rows in the&nbsp;<code>DELETE<\/code> <code>FROM<\/code>&nbsp;clause.<\/li>\n\n\n\n<li>Second, provide a condition in the&nbsp;<code><a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-where\/\">WHERE<\/a><\/code>&nbsp;clause to filter which rows to delete.<\/li>\n<\/ul>\n\n\n\n<p>Since the&nbsp;<code>WHERE<\/code>&nbsp;clause is optional, you can omit it in the&nbsp;<code>DELETE<\/code>&nbsp;statement. In this case, the&nbsp;<code>DELETE<\/code>&nbsp;statement will delete all rows from the table.<\/p>\n\n\n\n<p>If no row meets the&nbsp;condition&nbsp;in the&nbsp;<code>WHERE<\/code>&nbsp;clause, the&nbsp;<code>DELETE<\/code>&nbsp;statement will not delete any rows from the table.<\/p>\n\n\n\n<p>PostgreSQL returns a command tag indicating the number of rows deleted by the&nbsp;<code>DELETE<\/code>&nbsp;statement:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> count;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>If the count is zero, the <code>DELETE<\/code> statement does not delete any row from the table.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='setting-up-a-sample-table'>Setting up a sample table <a href=\"#setting-up-a-sample-table\" class=\"anchor\" id=\"setting-up-a-sample-table\" title=\"Anchor for Setting up a sample table\">#<\/a><\/h2>\n\n\n\n<p>We&#8217;ll delete rows from the&nbsp;<code>inventories<\/code>&nbsp;table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">CREATE<\/span> <span class=\"hljs-keyword\">TABLE<\/span> inventories (\n  <span class=\"hljs-type\">name<\/span> <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">255<\/span>),\n  brand <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">50<\/span>),\n  quantity <span class=\"hljs-type\">INT<\/span>,\n  price <span class=\"hljs-type\">DECIMAL<\/span>(<span class=\"hljs-number\">19<\/span>, <span class=\"hljs-number\">2<\/span>)\n);\n\n<span class=\"hljs-keyword\">INSERT<\/span> <span class=\"hljs-keyword\">INTO<\/span> inventories (<span class=\"hljs-type\">name<\/span>, brand, quantity, price)\n<span class=\"hljs-keyword\">VALUES<\/span> (<span class=\"hljs-string\">'iPhone 14 Pro'<\/span>, <span class=\"hljs-string\">'Apple'<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">999.99<\/span>),\n       (<span class=\"hljs-string\">'Galaxy S23 Ultra'<\/span>, <span class=\"hljs-string\">'Samsung'<\/span>, <span class=\"hljs-number\">15<\/span>, <span class=\"hljs-number\">1199.99<\/span>),\n       (<span class=\"hljs-string\">'Pixel 7 Pro'<\/span>, <span class=\"hljs-string\">'Google'<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">899.99<\/span>),\n       (<span class=\"hljs-string\">'Xperia 1 IV'<\/span>, <span class=\"hljs-string\">'Sony'<\/span>, <span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">1299.99<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" id='deleting-one-row-from-a-table'>Deleting one row from a table <a href=\"#deleting-one-row-from-a-table\" class=\"anchor\" id=\"deleting-one-row-from-a-table\" title=\"Anchor for Deleting one row from a table\">#<\/a><\/h2>\n\n\n\n<p>The following statement uses the&nbsp;<code>DELETE<\/code>&nbsp;statement to delete one row from the&nbsp;<code>inventories<\/code>&nbsp;table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> inventories\n<span class=\"hljs-keyword\">WHERE<\/span> <span class=\"hljs-type\">name<\/span> = <span class=\"hljs-string\">'iPhone 14 Pro'<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?db=delete&amp;q=REVMRVRFIEZST00gaW52ZW50b3JpZXMgV0hFUkUgbmFtZSA9ICdpUGhvbmUgMTQgUHJvJzs\" 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=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-number\">1<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, the condition in the&nbsp;<code>WHERE<\/code>&nbsp;clause matches one row. Therefore, the&nbsp;<code>DELETE<\/code>&nbsp;statement deleted only that row.<\/p>\n\n\n\n<p>The output indicates that the&nbsp;<code>DELETE<\/code>&nbsp;statement deleted one row successfully.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='deleting-all-rows-from-a-table'>Deleting all rows from a table <a href=\"#deleting-all-rows-from-a-table\" class=\"anchor\" id=\"deleting-all-rows-from-a-table\" title=\"Anchor for Deleting all rows from a table\">#<\/a><\/h2>\n\n\n\n<p>The following statement uses the&nbsp;<code>DELETE<\/code>&nbsp;statement to delete all rows from the&nbsp;<code>inventories<\/code>&nbsp;table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> inventories;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?db=delete&amp;q=REVMRVRFIEZST00gaW52ZW50b3JpZXM7\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>This <code>DELETE<\/code> statement doesn\u2019t use a&nbsp;<code>WHERE<\/code>&nbsp;clause, so it removes all remaining rows from the&nbsp;<code>inventories<\/code>&nbsp;table. This could be useful when you want to clear a table completely, for example, before re-populating it with new data.<\/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=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-number\">3<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The output shows that the&nbsp;<code>DELETE<\/code>&nbsp;statement removed three rows from the&nbsp;inventories&nbsp;table.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='returning-deleted-rows'>Returning deleted rows <a href=\"#returning-deleted-rows\" class=\"anchor\" id=\"returning-deleted-rows\" title=\"Anchor for Returning deleted rows\">#<\/a><\/h2>\n\n\n\n<p>The <code>DELETE<\/code> statement has an optional <code>RETURNING<\/code> clause that returns the deleted rows.<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> <span class=\"hljs-built_in\">table_name<\/span>\n<span class=\"hljs-keyword\">WHERE<\/span> condition\n<span class=\"hljs-keyword\">RETURNING<\/span> column1, column2, ...;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this syntax, specify a list of comma-separated columns from the deleted row you want to return. If you want to return all the columns of the deleted row, you can use the asterisk (*) as follows:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-9\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> <span class=\"hljs-built_in\">table_name<\/span>\n<span class=\"hljs-keyword\">WHERE<\/span> condition\n<span class=\"hljs-keyword\">RETURNING<\/span> *;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-9\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>For example, first, <a href=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-insert\/\">insert a new row<\/a> into the <code>inventories<\/code> table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-10\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">INSERT<\/span> <span class=\"hljs-keyword\">INTO<\/span> inventories (<span class=\"hljs-type\">name<\/span>, brand, quantity, price)\n<span class=\"hljs-keyword\">VALUES<\/span> (<span class=\"hljs-string\">'iPhone 15 Pro'<\/span>, <span class=\"hljs-string\">'Apple'<\/span>, <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">1299.99<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-10\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?db=delete&amp;q=SU5TRVJUIElOVE8gaW52ZW50b3JpZXMgKG5hbWUsIGJyYW5kLCBxdWFudGl0eSwgcHJpY2UpIFZBTFVFUyAoJ2lQaG9uZSAxNSBQcm8nLCAnQXBwbGUnLCA1LCAxMjk5Ljk5KTs\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Second, delete the <code>'iPhone 15 Pro'<\/code> and return the deleted row:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-11\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\"><span class=\"hljs-keyword\">DELETE<\/span> <span class=\"hljs-keyword\">FROM<\/span> inventories\n<span class=\"hljs-keyword\">WHERE<\/span> <span class=\"hljs-type\">name<\/span> = <span class=\"hljs-string\">'iPhone 15 Pro'<\/span>\n<span class=\"hljs-keyword\">RETURNING<\/span> *;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/www.pgtutorial.com\/playground\/?db=delete&amp;q=REVMRVRFIEZST00gaW52ZW50b3JpZXMgV0hFUkUgbmFtZSA9ICdpUGhvbmUgMTUgUHJvJyBSRVRVUk5JTkcgKjs\" 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-12\" data-shcb-language-name=\"PostgreSQL SQL dialect and PL\/pgSQL\" data-shcb-language-slug=\"pgsql\"><span><code class=\"hljs language-pgsql\">     <span class=\"hljs-type\">name<\/span>      | brand | quantity |  price\n<span class=\"hljs-comment\">---------------+-------+----------+---------<\/span>\n iPhone <span class=\"hljs-number\">15<\/span> Pro | Apple |        <span class=\"hljs-number\">5<\/span> | <span class=\"hljs-number\">1299.99<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-12\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PostgreSQL SQL dialect and PL\/pgSQL<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">pgsql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/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 PostgreSQL&nbsp;<code>DELETE<\/code>&nbsp;statement to delete one or more rows from a table.<\/li>\n\n\n\n<li>Use the <code>RETURNING<\/code> clause to return the deleted rows to the client.<\/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=\"158\"\n\t\t\t\tdata-post-url=\"https:\/\/www.pgtutorial.com\/postgresql-tutorial\/postgresql-delete\/\"\n\t\t\t\tdata-post-title=\"PostgreSQL DELETE Statement: Removing Data from a Table\"\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 9v11h11.28a2 2 0 0 0 2-1.7l1.38-9a2 2 0 0 0-2-2.3zM7 22H4a2 2 0 0 1-2-2v-7a2 2 0 0 1 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