{"id":200215,"date":"2025-05-06T08:51:03","date_gmt":"2025-05-06T00:51:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200215\/"},"modified":"2025-05-06T08:51:03","modified_gmt":"2025-05-06T00:51:03","slug":"%e5%a6%82%e4%bd%95%e4%bc%98%e5%8c%96-mysql-%e6%9f%a5%e8%af%a2%e8%af%ad%e5%8f%a5%ef%bc%8c%e9%ab%98%e6%95%88%e5%9c%b0%e6%9f%a5%e8%af%a2%e5%a4%9a%e4%b8%aa%e5%8d%95%e5%8f%b7%e7%9a%84%e6%9c%80%e6%96%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200215\/","title":{"rendered":"\u5982\u4f55\u4f18\u5316 MySQL \u67e5\u8be2\u8bed\u53e5\uff0c\u9ad8\u6548\u5730\u67e5\u8be2\u591a\u4e2a\u5355\u53f7\u7684\u6700\u65b0\u72b6\u6001\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f18\u5316 MySQL \u67e5\u8be2\u8bed\u53e5\uff0c\u9ad8\u6548\u5730\u67e5\u8be2\u591a\u4e2a\u5355\u53f7\u7684\u6700\u65b0\u72b6\u6001\uff1f<\/h1>\n<p>\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\uff0c\u6216\u8005\u662f\u5bf9\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730117391671f7f0fa1c04.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql \u67e5\u8be2\u8bed\u53e5\u4f18\u5316<\/strong><\/p>\n<p>\u5728\u7ed9\u5b9a\u7684\u8868 a \u4e2d\uff0c\u9700\u8981\u9ad8\u6548\u5730\u67e5\u8be2\u591a\u4e2a\u5355\u53f7\u7684\u6700\u65b0\u72b6\u6001\u3002\u76ee\u524d\u91c7\u7528\u5faa\u73af\u67e5\u8be2\u7684\u65b9\u5f0f\uff0c\u6548\u7387\u4f4e\u4e0b\u3002<\/p>\n<p><strong>\u95ee\u9898\u5206\u6790\uff1a<\/strong><br \/>\u8868\u683c\u8bbe\u8ba1\u4e2d\u6ca1\u6709\u4f7f\u7528\u7d22\u5f15\u6216\u4e3b\u952e\u6765\u4f18\u5316\u67e5\u8be2\u3002\u5bfc\u81f4\u6bcf\u6b21\u5fc5\u987b\u626b\u63cf\u6574\u4e2a\u8868\u624d\u80fd\u627e\u5230\u6700\u65b0\u6570\u636e\u3002<\/p>\n<p><strong>\u4f18\u5316\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n<pre>SELECT ord_id,status,updated_at\nFROM tablename\nWHERE ord_id IN (001,002,003)\nGROUP BY ord_id<\/pre>\n<p><strong>\u89e3\u91ca\uff1a<\/strong><\/p>\n<ul>\n<li><strong>where ord_id in (001,002,003)<\/strong>\uff1a\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u5355\u53f7\u3002<\/li>\n<li><strong>group by ord_id<\/strong>\uff1a\u5bf9\u67e5\u8be2\u7ed3\u679c\u6309\u5355\u53f7\u5206\u7ec4\uff0c\u53ea\u8fd4\u56de\u6bcf\u4e2a\u5355\u53f7\u7684\u6700\u65b0\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u6b21\u67e5\u8be2\u83b7\u53d6\u6240\u6709\u6307\u5b9a\u5355\u53f7\u7684\u6700\u65b0\u72b6\u6001\u3002<\/li>\n<li>\u907f\u514d\u4e86\u4f4e\u6548\u7684\u5faa\u73af\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<p><strong>\u8868\u7ed3\u6784\u4f18\u5316\uff1a<\/strong><br \/>\u6b64\u5916\uff0c\u5efa\u8bae\u5728\u8868 a \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u7d22\u5f15\uff1a<\/p>\n<ul>\n<li>\u4e3b\u952e\u6216\u552f\u4e00\u7d22\u5f15\uff1aord_id<\/li>\n<li>\u590d\u5408\u7d22\u5f15\uff1aupdated_at, ord_id<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u7d22\u5f15\u5c06\u663e\u8457\u63d0\u9ad8\u67e5\u8be2\u7684\u6027\u80fd\uff0c\u7279\u522b\u662f\u5f53\u8868\u4e2d\u8bb0\u5f55\u8f83\u591a\u65f6\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u4f18\u5316 MySQL \u67e5\u8be2\u8bed\u53e5\uff0c\u9ad8\u6548\u5730\u67e5\u8be2\u591a\u4e2a\u5355\u53f7\u7684\u6700\u65b0\u72b6\u6001\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6570\u636e\u5e93\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f18\u5316 MySQL \u67e5\u8be2\u8bed\u53e5\uff0c&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200215","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200215"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200215\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}