{"id":200391,"date":"2025-05-06T12:19:54","date_gmt":"2025-05-06T04:19:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200391\/"},"modified":"2025-05-06T12:19:54","modified_gmt":"2025-05-06T04:19:54","slug":"%e5%a6%82%e4%bd%95%e5%b0%86%e5%ad%90%e6%9f%a5%e8%af%a2%e4%b8%ad%e7%9a%84%e5%8f%82%e6%95%b0%e4%b8%8e%e5%a4%96%e5%b1%82-sql-%e8%af%ad%e5%8f%a5%e4%b8%ad%e7%9a%84%e5%ad%97%e6%ae%b5%e8%bf%9b%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200391\/","title":{"rendered":"\u5982\u4f55\u5c06\u5b50\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u4e0e\u5916\u5c42 SQL \u8bed\u53e5\u4e2d\u7684\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u5c06\u5b50\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u4e0e\u5916\u5c42 SQL \u8bed\u53e5\u4e2d\u7684\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83\uff1f<\/h1>\n<p>\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6570\u636e\u5e93\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5982\u4f55\u5c06\u5b50\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u4e0e\u5916\u5c42 SQL \u8bed\u53e5\u4e2d\u7684\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83\uff1f\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/173064603867279016b716b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 sql \u8bed\u53e5\u4e2d\u4f20\u9012\u53c2\u6570<\/strong><\/p>\n<p>\u672c\u95ee\u9898\u6d89\u53ca\u5728 sql \u8bed\u53e5\u4e2d\u4f20\u9012\u53c2\u6570\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<pre>update post set content = (\n    select group_concat(id) as ids\n    from article\n    where pid = 'id'\n)\nwhere id &lt; 720<\/pre>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u95ee\u9898\u4e2d\u7684\u4ee3\u7801\u9700\u8981\u5c06 article \u8868\u4e2d pid \u5b57\u6bb5\u7b49\u4e8e post \u8868 id \u5b57\u6bb5\u7684\u8bb0\u5f55\u7684 id \u503c\u62fc\u63a5\u5728\u4e00\u8d77\u3002\u4f46\u76ee\u524d\u4ee3\u7801\u4e2d\u7684 id \u5374\u662f\u4f5c\u4e3a\u5b57\u7b26\u4e32\uff0c\u65e0\u6cd5\u4e0e post \u8868\u4e2d\u7684 id \u5b57\u6bb5\u6bd4\u8f83\u3002<\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u5b50\u67e5\u8be2\u5e76\u5c06 post \u8868\u522b\u540d\u4e3a a\uff1a<\/p>\n<pre>UPDATE post a SET content = (\n    SELECT group_concat(id) AS ids\n    FROM article\n    WHERE pid = a.id\n)\nWHERE a.id &lt; 720<\/pre>\n<p>\u6b64\u4fee\u6539\u5c06 pid \u66ff\u6362\u4e3a a.id\uff0c\u4f7f\u5176\u4e0e\u5b50\u67e5\u8be2\u4e2d\u7684 id \u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5c06\u5b50\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u4e0e\u5916\u5c42 SQL \u8bed\u53e5\u4e2d\u7684\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5c06\u5b50\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u4e0e\u5916\u5c42 SQ&#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-200391","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200391","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=200391"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200391\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}