{"id":1560,"date":"2021-05-23T12:01:00","date_gmt":"2021-05-23T06:31:00","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=1560"},"modified":"2021-06-20T21:27:18","modified_gmt":"2021-06-20T15:57:18","slug":"the-report-sql-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/the-report-sql-solution\/","title":{"rendered":"The Report in SQL | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>The Report HackerRank Solution in SQL<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"676\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/the-report-sql-solution-codingbroz.png\" alt=\"The Report\" class=\"wp-image-1562\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/the-report-sql-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/the-report-sql-solution-codingbroz-768x433.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6635dc65c5dc9\" class=\"ez-toc-cssicon-toggle-label\"><label class=\"ez-toc-title\">Table of Contents<\/label>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0090ff;color:#0090ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0090ff;color:#0090ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6635dc65c5dc9\" checked \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.codingbroz.com\/the-report-sql-solution\/#Problem\" title=\"Problem\">Problem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.codingbroz.com\/the-report-sql-solution\/#Explanation\" title=\"Explanation\">Explanation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.codingbroz.com\/the-report-sql-solution\/#Solution_%E2%80%93_The_Report_in_SQL\" title=\"Solution &#8211; The Report in SQL\">Solution &#8211; The Report in SQL<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.codingbroz.com\/the-report-sql-solution\/#MySQL\" title=\"MySQL\">MySQL<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Problem\"><\/span><strong>Problem<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You are given two tables:&nbsp;<em>Students<\/em>&nbsp;and&nbsp;<em>Grades<\/em>.&nbsp;<em>Students<\/em>&nbsp;contains three columns&nbsp;<em>ID<\/em>,&nbsp;<em>Name<\/em>&nbsp;and&nbsp;<em>Marks<\/em>.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Column<\/th><th>Type<\/th><\/tr><\/thead><tbody><tr><td><em>ID<\/em><\/td><td><em>Integer<\/em><\/td><\/tr><tr><td><em>Name<\/em><\/td><td><em>String<\/em><\/td><\/tr><tr><td><em>Marks<\/em><\/td><td><em>Integer<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>Grades<\/em>&nbsp;contains the following data:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Grade<\/th><th>Min_Mark<\/th><th>Max_Mark<\/th><\/tr><\/thead><tbody><tr><td><em>1<\/em><\/td><td><em>0<\/em><\/td><td><em>9<\/em><\/td><\/tr><tr><td><em>2<\/em><\/td><td><em>10<\/em><\/td><td><em>19<\/em><\/td><\/tr><tr><td><em>3<\/em><\/td><td><em>20<\/em><\/td><td><em>29<\/em><\/td><\/tr><tr><td><em>4<\/em><\/td><td><em>30<\/em><\/td><td><em>39<\/em><\/td><\/tr><tr><td><em>5<\/em><\/td><td><em>40<\/em><\/td><td><em>49<\/em><\/td><\/tr><tr><td><em>6<\/em><\/td><td><em>50<\/em><\/td><td><em>59<\/em><\/td><\/tr><tr><td><em>7<\/em><\/td><td><em>60<\/em><\/td><td><em>69<\/em><\/td><\/tr><tr><td><em>8<\/em><\/td><td><em>70<\/em><\/td><td><em>79<\/em><\/td><\/tr><tr><td><em>9<\/em><\/td><td><em>80<\/em><\/td><td><em>89<\/em><\/td><\/tr><tr><td><em>10<\/em><\/td><td><em>90<\/em><\/td><td><em>99<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>Ketty<\/em>&nbsp;gives&nbsp;<em>Eve<\/em>&nbsp;a task to generate a report containing three columns:&nbsp;<em>Name<\/em>,&nbsp;<em>Grade<\/em>&nbsp;and&nbsp;<em>Mark<\/em>.&nbsp;<em>Ketty<\/em>&nbsp;doesn&#8217;t want the NAMES of those students who received a grade lower than&nbsp;<em>8<\/em>. The report must be in descending order by grade &#8212; i.e. higher grades are entered first. If there is more than one student with the same grade (8-10) assigned to them, order those particular students by their name alphabetically. Finally, if the grade is lower than 8, use &#8220;NULL&#8221; as their name and list them by their grades in descending order. If there is more than one student with the same grade (1-7) assigned to them, order those particular students by their marks in ascending order.<\/p>\n\n\n\n<p>Write a query to help Eve.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Id<\/th><th>Name<\/th><th>Marks<\/th><\/tr><\/thead><tbody><tr><td><em>1<\/em><\/td><td><em>Julia<\/em><\/td><td><em>88<\/em><\/td><\/tr><tr><td><em>2<\/em><\/td><td><em>Samantha<\/em><\/td><td><em>68<\/em><\/td><\/tr><tr><td><em>3<\/em><\/td><td><em>Maria<\/em><\/td><td><em>99<\/em><\/td><\/tr><tr><td><em>4<\/em><\/td><td><em>Scarlet<\/em><\/td><td><em>78<\/em><\/td><\/tr><tr><td><em>5<\/em><\/td><td><em>Ashley<\/em><\/td><td><em>63<\/em><\/td><\/tr><tr><td><em>6<\/em><\/td><td><em>Jane<\/em><\/td><td><em>81<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Maria 10 99\nJane 9 81\nJulia 9 88 \nScarlet 8 78\nNULL 7 63\nNULL 7 68<\/code><\/pre>\n\n\n\n<p><strong>Note<\/strong><\/p>\n\n\n\n<p>Print &#8220;NULL&#8221;&nbsp; as the name if the grade is less than 8.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Explanation\"><\/span><strong>Explanation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Consider the following table with the grades assigned to the students:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Id<\/th><th>Name<\/th><th>Marks<\/th><th>Grade<\/th><\/tr><\/thead><tbody><tr><td><em>1<\/em><\/td><td><em>Julia<\/em><\/td><td><em>88<\/em><\/td><td><em>9<\/em><\/td><\/tr><tr><td><em>2<\/em><\/td><td><em>Samantha<\/em><\/td><td><em>68<\/em><\/td><td><em>7<\/em><\/td><\/tr><tr><td><em>3<\/em><\/td><td><em>Maria<\/em><\/td><td><em>99<\/em><\/td><td><em>10<\/em><\/td><\/tr><tr><td><em>4<\/em><\/td><td><em>Scarlet<\/em><\/td><td><em>78<\/em><\/td><td><em>8<\/em><\/td><\/tr><tr><td><em>5<\/em><\/td><td><em>Ashley<\/em><\/td><td><em>63<\/em><\/td><td><em>7<\/em><\/td><\/tr><tr><td><em>6<\/em><\/td><td><em>Jane<\/em><\/td><td><em>81<\/em><\/td><td><em>9<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>So, the following students got&nbsp;<em>8<\/em>,&nbsp;<em>9<\/em>&nbsp;or&nbsp;<em>10<\/em>&nbsp;grades:<\/p>\n\n\n\n<ul><li><em>Maria (grade 10)<\/em><\/li><li><em>Jane (grade 9)<\/em><\/li><li><em>Julia (grade 9)<\/em><\/li><li><em>Scarlet (grade 8)<\/em><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_The_Report_in_SQL\"><\/span><strong>Solution &#8211; The Report in SQL<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"MySQL\"><\/span><strong>MySQL<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">SELECT CASE\n    WHEN G.grade > 7 THEN S.name\n    ELSE NULL\n    end AS names,\n    G.grade,\n    S.marks\nFROM   students S\n    JOIN grades G\n    ON S.marks BETWEEN G.min_mark AND G.max_mark\nORDER  BY G.grade DESC,\n    names ASC,\n    S.marks ASC;<\/pre>\n\n\n\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<ins class=\"adsbygoogle\"\n     style=\"display:block; text-align:center;\"\n     data-ad-layout=\"in-article\"\n     data-ad-format=\"fluid\"\n     data-ad-client=\"ca-pub-5246141430412355\"\n     data-ad-slot=\"8798433565\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\n\n\n\n<p><strong>Disclaimer:<\/strong> The above Problem <strong>(<a href=\"https:\/\/www.hackerrank.com\/challenges\/the-report\/problem\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"rank-math-link\">The Report<\/a>)<\/strong> is generated by <strong>Hacker Rank<\/strong> but the Solution is Provided by <strong>CodingBroz<\/strong>. This tutorial is only for <strong>Educational<\/strong> and <strong>Learning<\/strong> Purpose.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hello coders, today we are going to solve The Report HackerRank Solution in SQL.<\/p>\n","protected":false},"author":1,"featured_media":1562,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","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":"","theme-transparent-header-meta":"default","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-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-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-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-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-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-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9,138],"tags":[80,18,139,156],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/the-report-sql-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1560"}],"collection":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/comments?post=1560"}],"version-history":[{"count":3,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1560\/revisions"}],"predecessor-version":[{"id":3500,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1560\/revisions\/3500"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/1562"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=1560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=1560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=1560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}