{"id":200745,"date":"2025-05-06T09:03:03","date_gmt":"2025-05-06T01:03:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200745\/"},"modified":"2025-05-06T09:03:03","modified_gmt":"2025-05-06T01:03:03","slug":"%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e8%8e%b7%e5%8f%96%e7%94%a8%e6%88%b7%e8%a2%ab%e6%8e%88%e6%9d%83%e7%9a%84%e5%88%86%e7%ba%a7%e7%bb%93%e6%9e%84%ef%bc%8c%e5%8c%85%e6%8b%ac-f%e3%80%81e%e3%80%81d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200745\/","title":{"rendered":"\u5982\u4f55\u9ad8\u6548\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684\u5206\u7ea7\u7ed3\u6784\uff0c\u5305\u62ec F\u3001E\u3001D \u5217\u8868\uff0c\u5176\u4e2d F \u5217\u8868\u652f\u6301\u5206\u9875\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u9ad8\u6548\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684\u5206\u7ea7\u7ed3\u6784\uff0c\u5305\u62ec F\u3001E\u3001D \u5217\u8868\uff0c\u5176\u4e2d F \u5217\u8868\u652f\u6301\u5206\u9875\uff1f<\/h1>\n<p>\u5b66\u4e60\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u5c06\u4f1a\u4ecb\u7ecd\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241113\/173147637167343b9396b3b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql \u83b7\u53d6\u7528\u6237\u5206\u7ea7\u6388\u6743\u67b6\u6784<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u4f55\u901a\u8fc7 mysql \u9ad8\u6548\u5730\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684\u5206\u7ea7\u7ed3\u6784\uff0c\u5305\u62ec\u6388\u6743\u7684 f\u3001e\u3001d \u5217\u8868\uff0c\u5176\u4e2d f \u5217\u8868\u9700\u8981\u652f\u6301\u5206\u9875\u4e14\u6570\u91cf\u7ea7\u8f83\u5927\u3002<\/p>\n<p><strong>\u8868\u7ed3\u6784\uff1a<\/strong><\/p>\n<ul>\n<li>user\uff08u_id, &#8230;\uff09<\/li>\n<li>d\uff08d_id, d_name &#8230;\uff09<\/li>\n<li>e\uff08e_id, d_id, e_name &#8230;\uff09<\/li>\n<li>f\uff08f_id, d_id, e_id, f_name, f_area &#8230;\uff09<\/li>\n<li>p\uff08p_id, u_id, d_id, e_id, f_id, a_code &#8230;\uff09<\/li>\n<\/ul>\n<p><strong>\u6388\u6743\u6a21\u5f0f\uff1a<\/strong><\/p>\n<ul>\n<li>[1] &#8211; &#8211; &#8211; &#8211; \/\/ \u6388\u6743\u6240\u6709 d\u3001e\u3001f<\/li>\n<li>[2] d &#8211; &#8211; &#8211; \/\/ \u6388\u6743 d\uff0c\u5305\u62ec d \u4e0b\u6240\u6709 e \u548c f<\/li>\n<li>[3] d e &#8211; &#8211; \/\/ \u6388\u6743 d &gt; e\uff0c\u5305\u62ec e \u4e0b\u6240\u6709 f<\/li>\n<li>[4] d e f &#8211; \/\/ \u6388\u6743 d &gt; e &gt; f<\/li>\n<li>[5] &#8211; &#8211; &#8211; a \/\/ \u6388\u6743 area\uff0c\u5305\u62ec\u6240\u6709\u5c5e\u4e8e area \u7684 f\uff08\u8de8 d\u3001\u8de8 d &gt; e\uff09<\/li>\n<li>[6] d &#8211; &#8211; a \/\/ \u6388\u6743 d \u4e0b\u7684 area\uff0c\u542b d \u4e0b\u6240\u6709\u5728 area \u7684 f\uff08\u8de8 d &gt; e\uff09<\/li>\n<li>[7] d e &#8211; a \/\/ \u6388\u6743 d &gt; e \u4e0b\u7684 area\uff0c\u542b e \u4e0b\u6240\u6709\u5728 area \u7684 f<\/li>\n<\/ul>\n<p><strong>sql \u67e5\u8be2\uff1a<\/strong><\/p>\n<p><strong>\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684 f \u5217\u8868<\/strong>\uff08\u5e26\u5206\u9875\uff09\uff1a<\/p>\n<pre>select f.f_id, f.f_name, f.f_area\nfrom p \njoin f on p.f_id = f.f_id or p.f_id = 0\nwhere p.u_id = @user_id \nand (p.d_id = f.d_id or p.d_id = 0) \nand (p.e_id = f.e_id or p.e_id = 0) \nand (p.a_code = f.f_area or p.a_code = \"\")\norder by f.f_id \nlimit @start, @page_size<\/pre>\n<p><strong>\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684 e \u5217\u8868\uff1a<\/strong><\/p>\n<pre>select e.e_id, e.e_name\nfrom p\njoin e on p.e_id = e.e_id or p.e_id = 0\nwhere p.u_id = @user_id \nand (p.d_id = e.d_id or p.d_id = 0)\norder by e.e_id\nlimit @start, @page_size<\/pre>\n<p><strong>\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684 d \u5217\u8868\uff1a<\/strong><\/p>\n<pre>SELECT D.D_id, D.D_name\nFROM P\nJOIN D ON P.D_id = D.D_id OR P.D_id = 0\nWHERE P.U_id = @user_id\nORDER BY D.D_id\nLIMIT @start, @page_size<\/pre>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u9ad8\u6548\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684\u5206\u7ea7\u7ed3\u6784\uff0c\u5305\u62ec F\u3001E\u3001D \u5217\u8868\uff0c\u5176\u4e2d F \u5217\u8868\u652f\u6301\u5206\u9875\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\u9ad8\u6548\u83b7\u53d6\u7528\u6237\u88ab\u6388\u6743\u7684\u5206\u7ea7\u7ed3\u6784&#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-200745","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200745","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=200745"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200745\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}