{"id":13183,"date":"2024-03-15T02:01:44","date_gmt":"2024-03-15T02:01:44","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/"},"modified":"2025-08-05T13:03:37","modified_gmt":"2025-08-05T13:03:37","slug":"how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/","title":{"rendered":"Hive: Merge Multiple Rows into One"},"content":{"rendered":"<p>In Hive, you can use certain aggregate functions and join functions to merge multiple rows of data into one row.<\/p>\n<p>One approach is to use the aggregation function GROUP BY and the CONCAT_WS function. GROUP BY groups together the same column values, and then CONCAT_WS merges multiple rows of data within each group into a single row.<\/p>\n<p>The example query is as follows:<\/p>\n<pre class=\"post-pre\"><code>SELECT col1, col2, CONCAT_WS(',', col3) as merged_col3\r\nFROM your_table\r\nGROUP BY col1, col2;\r\n<\/code><\/pre>\n<p>In the above query, col1 and col2 are columns used for grouping, while col3 is the column to be combined. The CONCAT_WS(&#8216;,&#8217;, col3) function merges the multiple rows of data in the col3 column into one line using a comma as a separator, and returns the result as merged_col3.<\/p>\n<p>Another option is to utilize the GROUP_CONCAT function. This function merges multiple rows of data within each group into a single string.<\/p>\n<p>The example query is as follows:<\/p>\n<pre class=\"post-pre\"><code>SELECT col1, col2, GROUP_CONCAT(col3, ',') as merged_col3\r\nFROM your_table\r\nGROUP BY col1, col2;\r\n<\/code><\/pre>\n<p>In the above query, col1 and col2 are the columns used for grouping, while col3 is the column to be concatenated. The GROUP_CONCAT(col3, &#8216;,&#8217;) function combines the multiple rows of col3 column within each group into a single string, using a comma as a separator.<\/p>\n<p>Select the appropriate method to merge multiple rows of data into one based on the specific requirements and data structure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Hive, you can use certain aggregate functions and join functions to merge multiple rows of data into one row. One approach is to use the aggregation function GROUP BY and the CONCAT_WS function. GROUP BY groups together the same column values, and then CONCAT_WS merges multiple rows of data within each group into a [&hellip;]<\/p>\n","protected":false},"author":12,"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":[17492,3867,871,303,125],"class_list":["post-13183","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-concat_ws","tag-data-consolidation","tag-group-by","tag-hive","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>Hive: Merge Multiple Rows into One - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Efficiently merge multiple Hive table rows into one using GROUP BY &amp; CONCAT_WS. SQL query examples included.\" \/>\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\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hive: Merge Multiple Rows into One\" \/>\n<meta property=\"og:description\" content=\"Efficiently merge multiple Hive table rows into one using GROUP BY &amp; CONCAT_WS. SQL query examples included.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T02:01:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-05T13:03:37+00:00\" \/>\n<meta name=\"author\" content=\"Liam\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Liam\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\"},\"author\":{\"name\":\"Liam\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\"},\"headline\":\"Hive: Merge Multiple Rows into One\",\"datePublished\":\"2024-03-15T02:01:44+00:00\",\"dateModified\":\"2025-08-05T13:03:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\"},\"wordCount\":217,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"CONCAT_WS\",\"data consolidation\",\"GROUP BY\",\"Hive\",\"SQL\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\",\"name\":\"Hive: Merge Multiple Rows into One - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-15T02:01:44+00:00\",\"dateModified\":\"2025-08-05T13:03:37+00:00\",\"description\":\"Efficiently merge multiple Hive table rows into one using GROUP BY & CONCAT_WS. SQL query examples included.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hive: Merge Multiple Rows into One\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\",\"name\":\"Liam\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g\",\"caption\":\"Liam\"},\"sameAs\":[\"http:\/\/Wilson\"],\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/liamwilson\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Hive: Merge Multiple Rows into One - Blog - Silicon Cloud","description":"Efficiently merge multiple Hive table rows into one using GROUP BY & CONCAT_WS. SQL query examples included.","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:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/","og_locale":"en_US","og_type":"article","og_title":"Hive: Merge Multiple Rows into One","og_description":"Efficiently merge multiple Hive table rows into one using GROUP BY & CONCAT_WS. SQL query examples included.","og_url":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-15T02:01:44+00:00","article_modified_time":"2025-08-05T13:03:37+00:00","author":"Liam","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Liam","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/"},"author":{"name":"Liam","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671"},"headline":"Hive: Merge Multiple Rows into One","datePublished":"2024-03-15T02:01:44+00:00","dateModified":"2025-08-05T13:03:37+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/"},"wordCount":217,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"keywords":["CONCAT_WS","data consolidation","GROUP BY","Hive","SQL"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/","url":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/","name":"Hive: Merge Multiple Rows into One - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-15T02:01:44+00:00","dateModified":"2025-08-05T13:03:37+00:00","description":"Efficiently merge multiple Hive table rows into one using GROUP BY & CONCAT_WS. SQL query examples included.","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/how-to-consolidate-multiple-rows-of-data-in-a-hive-table-into-a-single-row\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Hive: Merge Multiple Rows into One"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671","name":"Liam","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g","caption":"Liam"},"sameAs":["http:\/\/Wilson"],"url":"https:\/\/www.silicloud.com\/blog\/author\/liamwilson\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/13183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=13183"}],"version-history":[{"count":3,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/13183\/revisions"}],"predecessor-version":[{"id":157069,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/13183\/revisions\/157069"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=13183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=13183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=13183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}