{"id":163837,"date":"2024-11-05T02:50:21","date_gmt":"2024-11-04T18:50:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163837\/"},"modified":"2024-11-05T02:50:22","modified_gmt":"2024-11-04T18:50:22","slug":"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%9e%e6%ad%b8%e9%8c%af%e8%aa%a4%ef%bc%8c%e4%bf%9d%e9%9a%9c%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%9e%e6%ad%b8%e9%8c%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163837\/","title":{"rendered":"\u89e3\u6c7a\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\uff0c\u4fdd\u969c\u6578\u64da\u5b89\u5168 (\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4)"},"content":{"rendered":"<h1 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%9e%e6%ad%b8%e9%8c%af%e8%aa%a4%e7%9a%84%e6%88%90%e5%9b%a0-glMhNEkhcY\">\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\u7684\u6210\u56e0<\/h2>\n<p>\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\u7684\u6210\u56e0\u591a\u7a2e\u591a\u6a23\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u8a2d\u8a08\u4e0d\u7576\uff1a<\/strong>\u6578\u64da\u5eab\u7d50\u69cb\u8a2d\u8a08\u4e0d\u5408\u7406\uff0c\u5c0e\u81f4\u8868\u4e4b\u9593\u7684\u4f9d\u8cf4\u95dc\u4fc2\u904e\u65bc\u8907\u96dc\u3002<\/li>\n<li><strong>\u67e5\u8a62\u8a9e\u53e5\u932f\u8aa4\uff1a<\/strong>\u4e0d\u7576\u7684\u67e5\u8a62\u8a9e\u53e5\u53ef\u80fd\u6703\u5f15\u767c\u905e\u6b78\u932f\u8aa4\uff0c\u4f8b\u5982\u5728\u4f7f\u7528\u81ea\u806f\u63a5\u6642\u672a\u8a2d\u7f6e\u9069\u7576\u7684\u689d\u4ef6\u3002<\/li>\n<li><strong>\u7f3a\u4e4f\u7d42\u6b62\u689d\u4ef6\uff1a<\/strong>\u5728\u7de8\u5beb\u905e\u6b78\u51fd\u6578\u6642\uff0c\u672a\u8a2d\u7f6e\u660e\u78ba\u7684\u7d42\u6b62\u689d\u4ef6\uff0c\u5c0e\u81f4\u7121\u9650\u5faa\u74b0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%9e%e6%ad%b8%e9%8c%af%e8%aa%a4%e7%9a%84%e5%bd%b1%e9%9f%bf-glMhNEkhcY\">\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\u7684\u5f71\u97ff<\/h2>\n<p>\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\u53ef\u80fd\u5c0d\u7cfb\u7d71\u9020\u6210\u56b4\u91cd\u5f71\u97ff\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u640d\u5931\uff1a\u932f\u8aa4\u7684\u64cd\u4f5c\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u6216\u640d\u58de\u3002<\/li>\n<li>\u7cfb\u7d71\u5d29\u6f70\uff1a\u7121\u9650\u905e\u6b78\u53ef\u80fd\u8017\u76e1\u7cfb\u7d71\u8cc7\u6e90\uff0c\u5c0e\u81f4\u670d\u52d9\u4e2d\u65b7\u3002<\/li>\n<li>\u6027\u80fd\u4e0b\u964d\uff1a\u5373\u4f7f\u672a\u5d29\u6f70\uff0c\u905e\u6b78\u932f\u8aa4\u4e5f\u6703\u5c0e\u81f4\u7cfb\u7d71\u6027\u80fd\u986f\u8457\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%9e%e6%ad%b8%e9%8c%af%e8%aa%a4%e7%9a%84%e6%96%b9%e6%b3%95-glMhNEkhcY\">\u89e3\u6c7a\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\u7684\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7a\u6578\u64da\u5eab\u905e\u6b78\u932f\u8aa4\uff0c\u5efa\u8b70\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-glMhNEkhcY\">1. \u512a\u5316\u6578\u64da\u5eab\u8a2d\u8a08<\/h3>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u61c9\u907f\u514d\u904e\u65bc\u8907\u96dc\u7684\u4f9d\u8cf4\u95dc\u4fc2\u3002\u4f7f\u7528\u6b63\u898f\u5316\u6280\u8853\u4f86\u7c21\u5316\u6578\u64da\u7d50\u69cb\uff0c\u6e1b\u5c11\u8868\u4e4b\u9593\u7684\u5faa\u74b0\u4f9d\u8cf4\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-glMhNEkhcY\">2. \u6aa2\u67e5\u67e5\u8a62\u8a9e\u53e5<\/h3>\n<p>\u5728\u7de8\u5beb\u67e5\u8a62\u8a9e\u53e5\u6642\uff0c\u61c9\u4ed4\u7d30\u6aa2\u67e5\u81ea\u806f\u63a5\u7684\u689d\u4ef6\uff0c\u78ba\u4fdd\u4e0d\u6703\u5f15\u767c\u905e\u6b78\u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT a.id, a.name\nFROM employees a\nJOIN employees b ON a.manager_id = b.id\nWHERE b.id IS NOT NULL;<\/code><\/pre>\n<h3 id=\"3-%e8%a8%ad%e7%bd%ae%e7%b5%82%e6%ad%a2%e6%a2%9d%e4%bb%b6-glMhNEkhcY\">3. \u8a2d\u7f6e\u7d42\u6b62\u689d\u4ef6<\/h3>\n<p>\u5728\u7de8\u5beb\u905e\u6b78\u51fd\u6578\u6642\uff0c\u5fc5\u9808\u8a2d\u7f6e\u660e\u78ba\u7684\u7d42\u6b62\u689d\u4ef6\uff0c\u4ee5\u9632\u6b62\u7121\u9650\u5faa\u74b0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE FUNCTION recursive_function(n INT)\nRETURNS INT\nBEGIN\n    IF n &lt;= 0 THEN\n        RETURN 0;\n    ELSE\n        RETURN n + recursive_function(n - 1);\n    END IF;\nEND;<\/code><\/pre>\n<h3 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