{"id":3052,"date":"2024-03-13T05:48:23","date_gmt":"2024-03-13T05:48:23","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/"},"modified":"2025-07-26T21:05:26","modified_gmt":"2025-07-26T21:05:26","slug":"what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/","title":{"rendered":"SQL: Efficiently Remove Duplicates and Calculate Sums"},"content":{"rendered":"<p>To eliminate duplicates and calculate the sum, you can use SQL&#8217;s DISTINCT and SUM functions together.<\/p>\n<p>For example, if there is a table named table1 that has a column named column1, to remove duplicates and sum the values of that column, the following SQL statement can be used:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">DISTINCT<\/span> column1, <span class=\"hljs-built_in\">SUM<\/span>(column1) \r\n<span class=\"hljs-keyword\">FROM<\/span> table1 \r\n<span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span> column1;\r\n<\/code><\/pre>\n<p>This way, we can eliminate duplicates and sum the values in column1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To eliminate duplicates and calculate the sum, you can use SQL&#8217;s DISTINCT and SUM functions together. For example, if there is a table named table1 that has a column named column1, to remove duplicates and sum the values of that column, the following SQL statement can be used: SELECT DISTINCT column1, SUM(column1) FROM table1 GROUP [&hellip;]<\/p>\n","protected":false},"author":10,"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":[408,410,284,409,406,411,125,407,466],"class_list":["post-3052","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-aggregate-functions","tag-data-manipulation","tag-database","tag-distinct","tag-duplicates","tag-query-optimization","tag-sql","tag-sum","tag-sum-function"],"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: Efficiently Remove Duplicates and Calculate Sums - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn efficient SQL techniques to remove duplicate entries and calculate sums. This guide provides practical examples and best practices for optimizing your database queries.\" \/>\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-removing-duplicate-entries-and-calculating-sum-in-sql\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL: Efficiently Remove Duplicates and Calculate Sums\" \/>\n<meta property=\"og:description\" content=\"Learn efficient SQL techniques to remove duplicate entries and calculate sums. This guide provides practical examples and best practices for optimizing your database queries.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/\" \/>\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=\"2024-03-13T05:48:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-26T21:05:26+00:00\" \/>\n<meta name=\"author\" content=\"Jackson Davis\" \/>\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=\"Jackson Davis\" \/>\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\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/\"},\"author\":{\"name\":\"Jackson Davis\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350\"},\"headline\":\"SQL: Efficiently Remove Duplicates and Calculate Sums\",\"datePublished\":\"2024-03-13T05:48:23+00:00\",\"dateModified\":\"2025-07-26T21:05:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/\"},\"wordCount\":68,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"aggregate functions\",\"data manipulation\",\"database\",\"DISTINCT\",\"duplicates\",\"query optimization\",\"SQL\",\"sum\",\"SUM function\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-for-removing-duplicate-entries-and-calculating-sum-in-sql\/\",\"name\":\"SQL: Efficiently Remove Duplicates and Calculate Sums - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-13T05:48:23+00:00\",\"dateModified\":\"2025-07-26T21:05:26+00:00\",\"description\":\"Learn efficient SQL techniques to remove duplicate entries and calculate sums. 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