{"id":6358,"date":"2024-03-14T04:09:23","date_gmt":"2024-03-14T04:09:23","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-are-the-methods-for-converting-rows-to-columns-and-columns-to-rows-in-mysql\/"},"modified":"2025-08-02T02:37:42","modified_gmt":"2025-08-02T02:37:42","slug":"what-are-the-methods-for-converting-rows-to-columns-and-columns-to-rows-in-mysql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-are-the-methods-for-converting-rows-to-columns-and-columns-to-rows-in-mysql\/","title":{"rendered":"MySQL Pivot: Rows to Columns Conversion"},"content":{"rendered":"<p>In MySQL, row to column and column to row transformations are typically achieved using the following methods:<\/p>\n<ol>\n<li>Performing row to column operation using aggregate functions and CASE statement.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span>\r\n    <span class=\"hljs-built_in\">MAX<\/span>(<span class=\"hljs-keyword\">CASE<\/span> <span class=\"hljs-keyword\">WHEN<\/span> attribute <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">'attribute1'<\/span> <span class=\"hljs-keyword\">THEN<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">END<\/span>) <span class=\"hljs-keyword\">AS<\/span> attribute1,\r\n    <span class=\"hljs-built_in\">MAX<\/span>(<span class=\"hljs-keyword\">CASE<\/span> <span class=\"hljs-keyword\">WHEN<\/span> attribute <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">'attribute2'<\/span> <span class=\"hljs-keyword\">THEN<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">END<\/span>) <span class=\"hljs-keyword\">AS<\/span> attribute2,\r\n    <span class=\"hljs-built_in\">MAX<\/span>(<span class=\"hljs-keyword\">CASE<\/span> <span class=\"hljs-keyword\">WHEN<\/span> attribute <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">'attribute3'<\/span> <span class=\"hljs-keyword\">THEN<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">END<\/span>) <span class=\"hljs-keyword\">AS<\/span> attribute3\r\n<span class=\"hljs-keyword\">FROM<\/span> your_table\r\n<span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span> id;\r\n<\/code><\/pre>\n<ol>\n<li>Perform column-to-row operation using UNION ALL.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-string\">'attribute1'<\/span> <span class=\"hljs-keyword\">AS<\/span> attribute, attribute1 <span class=\"hljs-keyword\">AS<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">FROM<\/span> your_table\r\n<span class=\"hljs-keyword\">UNION<\/span> <span class=\"hljs-keyword\">ALL<\/span>\r\n<span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-string\">'attribute2'<\/span> <span class=\"hljs-keyword\">AS<\/span> attribute, attribute2 <span class=\"hljs-keyword\">AS<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">FROM<\/span> your_table\r\n<span class=\"hljs-keyword\">UNION<\/span> <span class=\"hljs-keyword\">ALL<\/span>\r\n<span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-string\">'attribute3'<\/span> <span class=\"hljs-keyword\">AS<\/span> attribute, attribute3 <span class=\"hljs-keyword\">AS<\/span> <span class=\"hljs-keyword\">value<\/span> <span class=\"hljs-keyword\">FROM<\/span> your_table;\r\n<\/code><\/pre>\n<p>These methods can be adjusted and expanded according to specific needs and data structures to achieve operations of converting rows into columns and columns into rows.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In MySQL, row to column and column to row transformations are typically achieved using the following methods: Performing row to column operation using aggregate functions and CASE statement. SELECT MAX(CASE WHEN attribute = &#8216;attribute1&#8217; THEN value END) AS attribute1, MAX(CASE WHEN attribute = &#8216;attribute2&#8217; THEN value END) AS attribute2, MAX(CASE WHEN attribute = &#8216;attribute3&#8217; THEN [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[7622,7623,7619,7621,7620],"class_list":["post-6358","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-mysql-column-to-row","tag-mysql-data-transformation","tag-mysql-pivot","tag-mysql-row-to-column","tag-mysql-transpose"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MySQL Pivot: Rows to Columns Conversion - 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