{"id":10235,"date":"2024-03-14T11:45:43","date_gmt":"2024-03-14T11:45:43","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-oracle-compare-the-differences-between-two-tables\/"},"modified":"2025-08-03T20:57:49","modified_gmt":"2025-08-03T20:57:49","slug":"how-can-oracle-compare-the-differences-between-two-tables","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-oracle-compare-the-differences-between-two-tables\/","title":{"rendered":"Oracle MINUS: Compare Two Tables"},"content":{"rendered":"<p>In Oracle, you can use the MINUS operator to compare the differences between two tables. The MINUS operator is used to subtract the results of the second query from the results of the first query, returning only the rows that exist in the first query result.<\/p>\n<p>For example, suppose we have two tables, A and B, and we want to compare the differences between the two tables, we can execute the following query:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-keyword\">FROM<\/span> table_A\r\nMINUS\r\n<span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-keyword\">FROM<\/span> table_B;\r\n<\/code><\/pre>\n<p>This query will return rows that exist only in table A, which are the differences between table A and table B. Likewise, we can also find out rows that exist only in table B through a reverse query.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-keyword\">FROM<\/span> table_B\r\nMINUS\r\n<span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-keyword\">FROM<\/span> table_A;\r\n<\/code><\/pre>\n<p>This will help us identify the differing rows between Table A and Table B. It is important to note that the MINUS operator only returns unique rows, and when comparing the two tables, ensure that the structures and field data types are consistent.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Oracle, you can use the MINUS operator to compare the differences between two tables. The MINUS operator is used to subtract the results of the second query from the results of the first query, returning only the rows that exist in the first query result. For example, suppose we have two tables, A and [&hellip;]<\/p>\n","protected":false},"author":14,"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":[12676,11890,813,472,12677],"class_list":["post-10235","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-compare-tables","tag-minus-operator","tag-oracle-database","tag-oracle-sql","tag-table-differences"],"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>Oracle MINUS: Compare Two Tables - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn to compare Oracle tables using MINUS operator. 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