{"id":200244,"date":"2025-05-06T12:16:50","date_gmt":"2025-05-06T04:16:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200244\/"},"modified":"2025-05-06T12:16:50","modified_gmt":"2025-05-06T04:16:50","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-mysql-%e6%9f%a5%e8%af%a2%e6%a0%91%e7%8a%b6%e7%bb%93%e6%9e%84%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200244\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9\u6570\u636e\u5e93\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241030\/1730254019672194c3077a5.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u5728 mysql \u4e2d\u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e<\/strong><\/p>\n<p>\u6811\u72b6\u7ed3\u6784\u6570\u636e\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u636e\u5b58\u50a8\u65b9\u5f0f\uff0c\u7528\u4e8e\u8868\u793a\u5177\u6709\u5c42\u6b21\u5173\u7cfb\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u6587\u4ef6\u548c\u6587\u4ef6\u5939\u53ef\u4ee5\u8868\u793a\u4e3a\u4e00\u68f5\u6811\u3002<\/p>\n<p>\u8981\u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff0c\u6211\u4eec\u9700\u8981\u4e00\u79cd\u65b9\u6cd5\u6765\u8868\u793a\u6811\u4e2d\u7684\u5c42\u6b21\u5173\u7cfb\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u6280\u672f\u662f\u4f7f\u7528\u201c\u95ed\u5305\u8868\u201d\u3002<\/p>\n<p><strong>\u4ec0\u4e48\u662f\u95ed\u5305\u8868\uff1f<\/strong><\/p>\n<p>\u95ed\u5305\u8868\u662f\u4e00\u4e2a\u6269\u5c55\u4e86\u6811\u72b6\u7ed3\u6784\u7684\u8868\uff0c\u5b83\u5305\u542b\u989d\u5916\u7684\u5217\u6765\u8ddf\u8e2a\u6bcf\u4e2a\u8282\u70b9\u5230\u5176\u6240\u6709\u7956\u5148\u7684\u8ddd\u79bb\u3002\u8fd9\u4f7f\u5f97\u67e5\u8be2\u6811\u4e2d\u7684\u6240\u6709\u8282\u70b9\u53d8\u5f97\u5f88\u5bb9\u6613\uff0c\u5373\u4f7f\u8fd9\u4e9b\u8282\u70b9\u5728\u67e5\u8be2\u4e2d\u6ca1\u6709\u660e\u786e\u6307\u5b9a\u3002<\/p>\n<p><strong>\u521b\u5efa\u95ed\u5305\u8868<\/strong><\/p>\n<p>\u8981\u521b\u5efa\u95ed\u5305\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\uff1a<\/p>\n<pre>create table tree(\n  self int,\n  parent int,\n  distance int\n);<\/pre>\n<p><strong>\u586b\u5145\u95ed\u5305\u8868<\/strong><\/p>\n<p>\u8981\u586b\u5145\u95ed\u5305\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u9012\u5f52\u7b97\u6cd5\uff0c\u904d\u5386\u6811\u4e2d\u7684\u6bcf\u4e00\u4e2a\u8282\u70b9\u5e76\u63d2\u5165\u5176\u8ddd\u79bb\u5176\u6240\u6709\u7956\u5148\u7684\u8ddd\u79bb\u3002<\/p>\n<p><strong>\u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e<\/strong><\/p>\n<p>\u8981\u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u4e2d\u7684\u6240\u6709\u5305\u542b\u7279\u5b9a\u503c\u7684\u8282\u70b9\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\uff1a<\/p>\n<pre>SELECT *\nFROM tree\nWHERE self LIKE '%&lt;value&gt;%'<\/pre>\n<p><strong>\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u6211\u4eec\u5e94\u8be5\u4e3a\u6bcf\u4e2a\u5206\u7c7b\u5206\u914d\u4e00\u4e2a id\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u4e2d\u6587\u540d\u79f0\u3002<\/li>\n<li>\u95ed\u5305\u8868\u7684\u7a7a\u95f4\u5f00\u9500\u6bd4\u539f\u59cb\u6811\u72b6\u7ed3\u6784\u5927\u5c42\u7ea7\u7684\u5c42\u6570\u500d\u3002<\/li>\n<li>\u5bf9\u95ed\u5305\u8868\u8fdb\u884c\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u9700\u8981\u989d\u5916\u7684\u5904\u7406\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u6811\u72b6\u7ed3&#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-200244","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200244","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=200244"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200244\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}