{"id":193878,"date":"2025-03-03T06:30:00","date_gmt":"2025-03-03T05:30:00","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=193878"},"modified":"2025-02-28T14:03:18","modified_gmt":"2025-02-28T13:03:18","slug":"managing-table-data-in-sql","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql","title":{"rendered":"Managing Table Data: INSERT, UPDATE, DELETE with SQL"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"193878\" class=\"elementor elementor-193878\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-68d3ebf e-flex e-con-boxed e-con\" data-id=\"68d3ebf\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cea3f12 elementor-widget elementor-widget-text-editor\" data-id=\"cea3f12\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong>Tables store data that can be used or referenced in the future. Over time, it is common to modify this data to ensure it remains relevant and up-to-date. In this article, you will learn three essential SQL commands to modify data: UPDATE, INSERT, and DELETE.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14ffd1d e-flex e-con-boxed e-con\" data-id=\"14ffd1d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c964fb elementor-widget elementor-widget-heading\" data-id=\"4c964fb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-large\"><b>UPDATE: Changing Existing Data<\/b><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00893da elementor-widget elementor-widget-text-editor\" data-id=\"00893da\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The <\/span><span style=\"font-weight: 400;\">UPDATE<\/span><span style=\"font-weight: 400;\"> statement allows you to modify existing records in a table.<\/span><\/p><p><b>Example:<\/b><\/p><p><span style=\"font-weight: 400;\">Imagine you have a <\/span><b>Product Information Table (<\/b><b>product_info<\/b><b>)<\/b><span style=\"font-weight: 400;\"> for your kitchenware business. This table contains details about all products, including attributes such as <\/span><span style=\"font-weight: 400;\">product_id<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">product_name<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">weight<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">material<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">fabrication_country<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">cost<\/span><span style=\"font-weight: 400;\">, and <\/span><span style=\"font-weight: 400;\">price<\/span><span style=\"font-weight: 400;\">.<\/span><\/p><p><b>Before Update:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98ad403 elementor-widget elementor-widget-image\" data-id=\"98ad403\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1102\" height=\"152\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image3-2.webp\" class=\"attachment-full size-full wp-image-193887\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image3-2.webp 1102w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image3-2-300x41.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image3-2-1024x141.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image3-2-768x106.webp 768w\" sizes=\"(max-width: 1102px) 100vw, 1102px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-709c2be elementor-widget elementor-widget-text-editor\" data-id=\"709c2be\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">If the cost of borosilicate glass, used in your glass baking pan, increases, you need to update the cost data for this specific product.<\/span><\/p><p><b>SQL Script:<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">UPDATE product_info<\/span><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">SET cost = cost * 1.25<\/span><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">WHERE product_name = &#8216;baking pan&#8217; AND material = &#8216;glass&#8217;;<\/span><\/p><p><b>After Update:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8076ad elementor-widget elementor-widget-image\" data-id=\"f8076ad\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1102\" height=\"152\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2.webp\" class=\"attachment-full size-full wp-image-193888\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2.webp 1102w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-300x41.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-1024x141.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-768x106.webp 768w\" sizes=\"(max-width: 1102px) 100vw, 1102px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c63611 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"0c63611\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-scientist-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Master SQL for data science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5c94018 e-flex e-con-boxed e-con\" data-id=\"5c94018\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3413c28 elementor-widget elementor-widget-heading\" data-id=\"3413c28\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\"><b>INSERT: Adding New Data<\/b><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-360b989 elementor-widget elementor-widget-text-editor\" data-id=\"360b989\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The <\/span><span style=\"font-weight: 400;\">INSERT<\/span><span style=\"font-weight: 400;\"> statement allows you to add new records to a table.<\/span><\/p><p><b>Example:<\/b><\/p><p><span style=\"font-weight: 400;\">As environmental concerns grow, sustainable materials are becoming popular. You decide to introduce a new baking pan made of <\/span><b>carbon steel<\/b><span style=\"font-weight: 400;\">, which is durable, versatile, and heat-tolerant. You can use <\/span><span style=\"font-weight: 400;\">INSERT<\/span><span style=\"font-weight: 400;\"> to add this new product to your table.<\/span><\/p><p><b>Before Insert:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93f9eae elementor-widget elementor-widget-image\" data-id=\"93f9eae\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1102\" height=\"152\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2.webp\" class=\"attachment-full size-full wp-image-193888\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2.webp 1102w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-300x41.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-1024x141.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image1-2-768x106.webp 768w\" sizes=\"(max-width: 1102px) 100vw, 1102px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d468ca elementor-widget elementor-widget-text-editor\" data-id=\"1d468ca\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><b>SQL Script:<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">INSERT INTO product_info (product_id, product_name, weight, material, fabrication_country, cost, price)<\/span><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">VALUES (235, &#8216;baking pan&#8217;, 0.25, &#8216;carbon steel&#8217;, &#8216;France&#8217;, 9, 16);<\/span><\/p><p><b>After Insert:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac800f7 elementor-widget elementor-widget-image\" data-id=\"ac800f7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1138\" height=\"200\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image6-2.webp\" class=\"attachment-full size-full wp-image-193892\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image6-2.webp 1138w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image6-2-300x53.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image6-2-1024x180.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image6-2-768x135.webp 768w\" sizes=\"(max-width: 1138px) 100vw, 1138px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c538f5 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"3c538f5\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-scientist-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn SQL<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-71d8d75 e-flex e-con-boxed e-con\" data-id=\"71d8d75\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-702216c elementor-widget elementor-widget-heading\" data-id=\"702216c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\"><b>DELETE: Removing Data<\/b><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-efd4403 elementor-widget elementor-widget-text-editor\" data-id=\"efd4403\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The <\/span><span style=\"font-weight: 400;\">DELETE<\/span><span style=\"font-weight: 400;\"> statement allows you to remove records from a table.<\/span><\/p><p><b>Example:<\/b><\/p><p><span style=\"font-weight: 400;\">Due to global supply chain disruptions, you decide to discontinue a <\/span><b>stoneware baking pan<\/b><span style=\"font-weight: 400;\">. To remove it from your product catalog, use the <\/span><span style=\"font-weight: 400;\">DELETE<\/span><span style=\"font-weight: 400;\"> statement.<\/span><\/p><p><b>Before Delete:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d504ff elementor-widget elementor-widget-image\" data-id=\"9d504ff\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1138\" height=\"198\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image5-2.webp\" class=\"attachment-full size-full wp-image-193896\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image5-2.webp 1138w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image5-2-300x52.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image5-2-1024x178.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image5-2-768x134.webp 768w\" sizes=\"(max-width: 1138px) 100vw, 1138px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fda7edc elementor-widget elementor-widget-text-editor\" data-id=\"fda7edc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><b>SQL Script:<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">DELETE FROM product_info<\/span><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">WHERE product_name = &#8216;baking pan&#8217; AND material = &#8216;stoneware&#8217;;<\/span><\/p><p><b>After Delete:<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c214d0 elementor-widget elementor-widget-image\" data-id=\"9c214d0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1104\" height=\"150\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image4-2.webp\" class=\"attachment-full size-full wp-image-193897\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/image4-2.webp 1104w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image4-2-300x41.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image4-2-1024x139.webp 1024w, https:\/\/datascientest.com\/en\/files\/2025\/02\/image4-2-768x104.webp 768w\" sizes=\"(max-width: 1104px) 100vw, 1104px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c716e9 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"6c716e9\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-scientist-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn more about SQL<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cbc7bf8 e-flex e-con-boxed e-con\" data-id=\"cbc7bf8\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f914148 elementor-widget elementor-widget-heading\" data-id=\"f914148\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\"><b>Conclusion<\/b><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7549342 elementor-widget elementor-widget-text-editor\" data-id=\"7549342\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Understanding how to modify data in SQL is crucial for maintaining accurate and up-to-date databases. Here\u2019s a quick recap:<\/span><\/p><ul><li><b>UPDATE<\/b><span style=\"font-weight: 400;\"> modifies existing records.<\/span><\/li><li><b>INSERT<\/b><span style=\"font-weight: 400;\"> adds new records.<\/span><\/li><li><b>DELETE<\/b><span style=\"font-weight: 400;\"> removes records from a table.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c895640 elementor-widget elementor-widget-text-editor\" data-id=\"c895640\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Mastering these commands will help you manage databases efficiently and keep your data relevant!<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e53a95 elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"8e53a95\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Discover our Data Science courses<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f8054f7 e-flex e-con-boxed e-con\" data-id=\"f8054f7\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e2861f8 elementor-widget elementor-widget-html\" data-id=\"e2861f8\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What is the purpose of the INSERT statement in SQL?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The INSERT statement is used to add new records into a table. It allows you to specify values for specific columns or insert data from another table using the INSERT INTO ... SELECT statement.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"How does the UPDATE statement work in SQL?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The UPDATE statement modifies existing records in a table. It uses the SET clause to specify the new values and the WHERE clause to determine which rows should be updated, preventing accidental changes to all rows.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What precautions should be taken when using the DELETE statement?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"When using DELETE, it is essential to include a WHERE clause to target specific rows; otherwise, all records in the table will be deleted. Additionally, using transactions (BEGIN, COMMIT, ROLLBACK) helps prevent accidental data loss.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What is the difference between DELETE and TRUNCATE in SQL?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"DELETE removes specific rows based on a condition and logs the operation, allowing for rollback in a transaction. TRUNCATE removes all rows from a table without logging individual row deletions and is generally faster but cannot be rolled back in most databases.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Tables store data that can be used or referenced in the future. Over time, it is common to modify this data to ensure it remains relevant and up-to-date. In this article, you will learn three essential SQL commands to modify data: UPDATE, INSERT, and DELETE. UPDATE: Changing Existing Data The UPDATE statement allows you to [&hellip;]<\/p>\n","protected":false},"author":99,"featured_media":193880,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2425],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Managing Table Data: INSERT, UPDATE, DELETE with SQL<\/title>\n<meta name=\"description\" content=\"Master Managing Table Data in SQL: Learn how to insert, update, delete, and optimize data efficiently. Explore best practices for indexing, normalization, and data integrity to ensure high-performance database management!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Managing Table Data: INSERT, UPDATE, DELETE with SQL\" \/>\n<meta property=\"og:description\" content=\"Tables store data that can be used or referenced in the future. Over time, it is common to modify this data to ensure it remains relevant and up-to-date.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\" \/>\n<meta property=\"og:site_name\" content=\"Data Science Courses | DataScientest\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataScientestEN\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-03T05:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-28T13:03:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/Managing-Table-Data-SQL-DataScientest.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Alex Hsu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataScientest__\" \/>\n<meta name=\"twitter:site\" content=\"@DataScientest__\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alex Hsu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql#article\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\"},\"author\":{\"name\":\"Alex Hsu\",\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/person\/3699921acd6535a6f0a0b0a4cc1b52e0\"},\"headline\":\"Managing Table Data: INSERT, UPDATE, DELETE with SQL\",\"datePublished\":\"2025-03-03T05:30:00+00:00\",\"dateModified\":\"2025-02-28T13:03:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\"},\"wordCount\":354,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/datascientest.com\/en\/#organization\"},\"articleSection\":[\"Data Science\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/datascientest.com\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\",\"url\":\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\",\"name\":\"Managing Table Data: INSERT, UPDATE, DELETE with SQL\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/en\/#website\"},\"datePublished\":\"2025-03-03T05:30:00+00:00\",\"dateModified\":\"2025-02-28T13:03:18+00:00\",\"description\":\"Master Managing Table Data in SQL: Learn how to insert, update, delete, and optimize data efficiently. Explore best practices for indexing, normalization, and data integrity to ensure high-performance database management!\",\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/en\/managing-table-data-in-sql\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/en\/#website\",\"url\":\"https:\/\/datascientest.com\/en\/\",\"name\":\"Data Science Courses | DataScientest\",\"description\":\"Leader in Data Science Courses\",\"publisher\":{\"@id\":\"https:\/\/datascientest.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/datascientest.com\/en\/#organization\",\"name\":\"DataScientest\",\"url\":\"https:\/\/datascientest.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png\",\"contentUrl\":\"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png\",\"width\":301,\"height\":301,\"caption\":\"DataScientest\"},\"image\":{\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/DataScientestEN\",\"https:\/\/twitter.com\/DataScientest__\",\"https:\/\/www.linkedin.com\/school\/datascientest\/mycompany\/\",\"https:\/\/www.tiktok.com\/@datascientest\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/person\/3699921acd6535a6f0a0b0a4cc1b52e0\",\"name\":\"Alex Hsu\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/datascientest.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/f1076555f6e3dffa5f499a14243f9e46?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/f1076555f6e3dffa5f499a14243f9e46?s=96&d=mm&r=g\",\"caption\":\"Alex Hsu\"},\"description\":\"Alex (Yu-Hao) Hsu is a data-driven professional with extensive experience in data analysis, visualization, and statistics, currently working as a Production Planning Engineer at TSMC. With a background in prominent companies like Amazon and BNP Paribas, Alex is skilled in various analytics tools, including Python, R, SQL, Power BI, and Tableau. He is dedicated to continuous learning in data science, evidenced by his advanced studies in machine learning and deep learning, and he actively shares SQL insights to help others enhance their data skills.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/alexhsu-analyst\/\"],\"url\":\"https:\/\/datascientest.com\/en\/author\/alexhsu\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Managing Table Data: INSERT, UPDATE, DELETE with SQL","description":"Master Managing Table Data in SQL: Learn how to insert, update, delete, and optimize data efficiently. Explore best practices for indexing, normalization, and data integrity to ensure high-performance database management!","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql","og_locale":"en_GB","og_type":"article","og_title":"Managing Table Data: INSERT, UPDATE, DELETE with SQL","og_description":"Tables store data that can be used or referenced in the future. Over time, it is common to modify this data to ensure it remains relevant and up-to-date.","og_url":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql","og_site_name":"Data Science Courses | DataScientest","article_publisher":"https:\/\/www.facebook.com\/DataScientestEN","article_published_time":"2025-03-03T05:30:00+00:00","article_modified_time":"2025-02-28T13:03:18+00:00","og_image":[{"width":1200,"height":600,"url":"https:\/\/datascientest.com\/en\/files\/2025\/02\/Managing-Table-Data-SQL-DataScientest.webp","type":"image\/webp"}],"author":"Alex Hsu","twitter_card":"summary_large_image","twitter_creator":"@DataScientest__","twitter_site":"@DataScientest__","twitter_misc":{"Written by":"Alex Hsu","Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql#article","isPartOf":{"@id":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql"},"author":{"name":"Alex Hsu","@id":"https:\/\/datascientest.com\/en\/#\/schema\/person\/3699921acd6535a6f0a0b0a4cc1b52e0"},"headline":"Managing Table Data: INSERT, UPDATE, DELETE with SQL","datePublished":"2025-03-03T05:30:00+00:00","dateModified":"2025-02-28T13:03:18+00:00","mainEntityOfPage":{"@id":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql"},"wordCount":354,"commentCount":0,"publisher":{"@id":"https:\/\/datascientest.com\/en\/#organization"},"articleSection":["Data Science"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/datascientest.com\/en\/managing-table-data-in-sql#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/datascientest.com\/#organization"}},{"@type":"WebPage","@id":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql","url":"https:\/\/datascientest.com\/en\/managing-table-data-in-sql","name":"Managing Table Data: INSERT, UPDATE, DELETE with SQL","isPartOf":{"@id":"https:\/\/datascientest.com\/en\/#website"},"datePublished":"2025-03-03T05:30:00+00:00","dateModified":"2025-02-28T13:03:18+00:00","description":"Master Managing Table Data in SQL: Learn how to insert, update, delete, and optimize data efficiently. Explore best practices for indexing, normalization, and data integrity to ensure high-performance database management!","inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/datascientest.com\/en\/managing-table-data-in-sql"]}]},{"@type":"WebSite","@id":"https:\/\/datascientest.com\/en\/#website","url":"https:\/\/datascientest.com\/en\/","name":"Data Science Courses | DataScientest","description":"Leader in Data Science Courses","publisher":{"@id":"https:\/\/datascientest.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/datascientest.com\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/datascientest.com\/en\/#organization","name":"DataScientest","url":"https:\/\/datascientest.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png","contentUrl":"https:\/\/datascientest.com\/en\/wp-content\/blogs.dir\/9\/files\/2024\/02\/DataScientest_icon_blue-2.png","width":301,"height":301,"caption":"DataScientest"},"image":{"@id":"https:\/\/datascientest.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/DataScientestEN","https:\/\/twitter.com\/DataScientest__","https:\/\/www.linkedin.com\/school\/datascientest\/mycompany\/","https:\/\/www.tiktok.com\/@datascientest"]},{"@type":"Person","@id":"https:\/\/datascientest.com\/en\/#\/schema\/person\/3699921acd6535a6f0a0b0a4cc1b52e0","name":"Alex Hsu","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/datascientest.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/f1076555f6e3dffa5f499a14243f9e46?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/f1076555f6e3dffa5f499a14243f9e46?s=96&d=mm&r=g","caption":"Alex Hsu"},"description":"Alex (Yu-Hao) Hsu is a data-driven professional with extensive experience in data analysis, visualization, and statistics, currently working as a Production Planning Engineer at TSMC. With a background in prominent companies like Amazon and BNP Paribas, Alex is skilled in various analytics tools, including Python, R, SQL, Power BI, and Tableau. He is dedicated to continuous learning in data science, evidenced by his advanced studies in machine learning and deep learning, and he actively shares SQL insights to help others enhance their data skills.","sameAs":["https:\/\/www.linkedin.com\/in\/alexhsu-analyst\/"],"url":"https:\/\/datascientest.com\/en\/author\/alexhsu"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts\/193878"}],"collection":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/users\/99"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/comments?post=193878"}],"version-history":[{"count":39,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts\/193878\/revisions"}],"predecessor-version":[{"id":194156,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/posts\/193878\/revisions\/194156"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/media\/193880"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/media?parent=193878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/categories?post=193878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/en\/wp-json\/wp\/v2\/tags?post=193878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}