{"id":200900,"date":"2025-05-06T12:59:43","date_gmt":"2025-05-06T04:59:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200900\/"},"modified":"2025-05-06T12:59:43","modified_gmt":"2025-05-06T04:59:43","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-mysql-%e6%9f%a5%e8%af%a2%e7%89%b9%e5%ae%9a%e9%83%a8%e9%97%a8%e5%8f%8a%e5%85%b6%e6%89%80%e6%9c%89%e4%b8%8b%e5%b1%9e%e9%83%a8%e9%97%a8%e7%9a%84%e7%94%a8%e6%88%b7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200900\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u7279\u5b9a\u90e8\u95e8\u53ca\u5176\u6240\u6709\u4e0b\u5c5e\u90e8\u95e8\u7684\u7528\u6237\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u7279\u5b9a\u90e8\u95e8\u53ca\u5176\u6240\u6709\u4e0b\u5c5e\u90e8\u95e8\u7684\u7528\u6237\uff1f<\/h1>\n<p>\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241119\/1732024669673c995d3c498.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql \u5206\u7ec4\u67e5\u8be2\u67d0\u4e2a\u90e8\u95e8\u53ca\u5176\u4e0b\u5c5e\u90e8\u95e8\u7684\u7528\u6237<\/strong><\/p>\n<p>\u5f53\u7528\u6237\u53ef\u4ee5\u5f52\u5c5e\u4e8e\u591a\u4e2a\u90e8\u95e8\u65f6\uff0c\u9700\u8981\u4f7f\u7528 mysql \u67e5\u8be2\u6765\u68c0\u7d22\u7279\u5b9a\u90e8\u95e8\u53ca\u5176\u6240\u6709\u4e0b\u5c5e\u90e8\u95e8\u4e2d\u7684\u7528\u6237\u3002<\/p>\n<p>\u4e3a\u4e86\u907f\u514d\u91cd\u590d\u8bb0\u5f55\uff0c\u53ef\u4ee5\u4f7f\u7528 where \u4ece\u53e5\u6765\u9650\u5b9a\u67e5\u8be2\u7ed3\u679c\uff0c\u53ea\u9009\u62e9\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002<\/p>\n<p><strong>sql \u67e5\u8be2\u8bed\u53e5\uff1a<\/strong><\/p>\n<pre>SELECT\n    ud.dept_id,\n    u.*\nFROM\n    sys_user_dept ud\nLEFT JOIN\n    sys_user u ON ud.user_id = u.id\nWHERE\n    ud.\u90e8\u95e8id\u5b57\u6bb5 = \u9700\u8981\u67e5\u8be2\u7684\u90e8\u95e8id<\/pre>\n<p>\u5176\u4e2d\uff0c\u90e8\u95e8id\u5b57\u6bb5\u662f\u8981\u67e5\u8be2\u90e8\u95e8\u7684 id \u5b57\u6bb5\u540d\u79f0\u3002<\/p>\n<p>\u4f7f\u7528\u6b64\u67e5\u8be2\uff0c\u53ea\u80fd\u68c0\u7d22\u5c5e\u4e8e\u7279\u5b9a\u90e8\u95e8\u53ca\u5176\u6240\u6709\u4e0b\u5c5e\u90e8\u95e8\u4e2d\u7684\u7528\u6237\uff0c\u4ece\u800c\u6d88\u9664\u91cd\u590d\u8bb0\u5f55\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8be2\u7279\u5b9a\u90e8&#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-200900","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200900","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=200900"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200900\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}