{"id":213866,"date":"2025-05-12T18:12:51","date_gmt":"2025-05-12T18:12:51","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=213866"},"modified":"2025-05-12T18:12:53","modified_gmt":"2025-05-12T18:12:53","slug":"write-an-sql-query-to-retrieve-the-supplier-number-and-supplier-names-from-the-supplier-table-where-the-supplier-name-starts-with-the-letter-r","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/12\/write-an-sql-query-to-retrieve-the-supplier-number-and-supplier-names-from-the-supplier-table-where-the-supplier-name-starts-with-the-letter-r\/","title":{"rendered":"Write an SQL query to retrieve the supplier number and supplier names from the supplier table, where the supplier name starts with the letter &#8216;R&#8217;."},"content":{"rendered":"\n<p>Write an SQL query to retrieve the supplier number and supplier names from the supplier table, where the supplier name starts with the letter &#8216;R&#8217;.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 SQL Query:<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT supplier_number, supplier_name\nFROM supplier\nWHERE supplier_name LIKE 'R%';<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\udde0 <strong>Explanation (300+ words):<\/strong><\/h3>\n\n\n\n<p>This SQL query retrieves data from a table named <code>supplier<\/code>, specifically targeting records where the <code>supplier_name<\/code> starts with the letter <strong>\u2018R\u2019<\/strong>. Let\u2019s break it down step by step to understand how it works:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>SELECT Clause<\/strong>:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT supplier_number, supplier_name<\/code><\/pre>\n\n\n\n<p>The <code>SELECT<\/code> statement is used to specify which columns you want to retrieve from the database. In this case, we are selecting:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>supplier_number<\/code>: A unique identifier for each supplier.<\/li>\n\n\n\n<li><code>supplier_name<\/code>: The name of the supplier.<\/li>\n<\/ul>\n\n\n\n<p>These columns will be shown in the final result set.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>FROM Clause<\/strong>:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>FROM supplier<\/code><\/pre>\n\n\n\n<p>This tells the SQL engine which table to pull the data from. Here, it is the <code>supplier<\/code> table.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>WHERE Clause<\/strong>:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>WHERE supplier_name LIKE 'R%';<\/code><\/pre>\n\n\n\n<p>The <code>WHERE<\/code> clause is used to filter rows based on specific conditions. In this query, we use it to check if the <code>supplier_name<\/code> starts with the letter &#8216;R&#8217;.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>LIKE Operator<\/strong>:<\/h4>\n\n\n\n<p>The <code>LIKE<\/code> keyword is used for pattern matching in SQL. The pattern <code>'R%'<\/code> breaks down as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>'R'<\/code>: The name must start with the letter &#8216;R&#8217;.<\/li>\n\n\n\n<li><code>'%'<\/code>: This is a wildcard that represents <strong>zero or more characters<\/strong> following &#8216;R&#8217;. So, it will match names like &#8216;Robert&#8217;, &#8216;Riverside&#8217;, &#8216;R-Tech&#8217;, etc.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">5. <strong>Why Use LIKE Instead of =?<\/strong><\/h4>\n\n\n\n<p>Using <code>=<\/code> would require an exact match. For example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>WHERE supplier_name = 'Robert';<\/code><\/pre>\n\n\n\n<p>This would only return suppliers named exactly &#8216;Robert&#8217;. But we want <strong>all names starting with &#8216;R&#8217;<\/strong>, so we use <code>LIKE 'R%'<\/code>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcdd Summary:<\/h3>\n\n\n\n<p>The query:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT supplier_number, supplier_name FROM supplier WHERE supplier_name LIKE 'R%';<\/code><\/pre>\n\n\n\n<p>is the correct way to retrieve all suppliers whose names begin with &#8216;R&#8217;, returning their numbers and names efficiently using pattern matching.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Write an SQL query to retrieve the supplier number and supplier names from the supplier table, where the supplier name starts with the letter &#8216;R&#8217;. The Correct Answer and Explanation is: \u2705 SQL Query: \ud83e\udde0 Explanation (300+ words): This SQL query retrieves data from a table named supplier, specifically targeting records where the supplier_name starts [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-213866","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/213866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=213866"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/213866\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=213866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=213866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=213866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}