{"id":12422,"date":"2024-03-14T15:49:41","date_gmt":"2024-03-14T15:49:41","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-merging-multiple-lines-into-one-line-in-sql\/"},"modified":"2025-08-05T01:21:07","modified_gmt":"2025-08-05T01:21:07","slug":"what-is-the-method-for-merging-multiple-lines-into-one-line-in-sql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-merging-multiple-lines-into-one-line-in-sql\/","title":{"rendered":"SQL Combine Multiple Rows into One"},"content":{"rendered":"<p>In SQL, you can use the GROUP BY clause and aggregate functions to combine multiple rows into one row.<\/p>\n<p>For example, considering the following data:<\/p>\n<pre class=\"post-pre\"><code>id   name\r\n1    John\r\n1    Jane\r\n1    Mike\r\n2    Anna\r\n2    David\r\n<\/code><\/pre>\n<p>To merge the above data into one row by id, you can use the GROUP BY clause and GROUP_CONCAT function.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> id, GROUP_CONCAT(name) <span class=\"hljs-keyword\">AS<\/span> names\r\n<span class=\"hljs-keyword\">FROM<\/span> table_name\r\n<span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span> id;\r\n<\/code><\/pre>\n<p>The above query will yield the following results:<\/p>\n<pre class=\"post-pre\"><code>id   names\r\n1    John,Jane,Mike\r\n2    Anna,David\r\n<\/code><\/pre>\n<p>The GROUP_CONCAT function combines the name values under each id into a single string, separating each value with a comma.<\/p>\n<p>It should be noted that the GROUP_CONCAT function may have different syntax or details in different databases, so adjust accordingly based on the type and version of the database used.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In SQL, you can use the GROUP BY clause and aggregate functions to combine multiple rows into one row. For example, considering the following data: id name 1 John 1 Jane 1 Mike 2 Anna 2 David To merge the above data into one row by id, you can use the GROUP BY clause and [&hellip;]<\/p>\n","protected":false},"author":6,"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":[408,16267,871,591,125],"class_list":["post-12422","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-aggregate-functions","tag-combine-rows","tag-group-by","tag-group_concat","tag-sql"],"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>SQL Combine Multiple Rows into One - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to merge rows into one line in SQL using GROUP_CONCAT. Simple example with GROUP BY clause.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-merging-multiple-lines-into-one-line-in-sql\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Combine Multiple Rows into One\" \/>\n<meta property=\"og:description\" content=\"Learn how to merge rows into one line in SQL using GROUP_CONCAT. 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