{"id":200008,"date":"2025-05-06T09:55:48","date_gmt":"2025-05-06T01:55:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200008\/"},"modified":"2025-05-06T09:55:48","modified_gmt":"2025-05-06T01:55:48","slug":"mysql%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%e6%80%a7%e5%88%ab%e5%ad%97%e6%ae%b5%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200008\/","title":{"rendered":"MySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p>\u5728MySQL\u4e2d\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u4e00\u822c\u53ef\u4ee5\u4f7f\u7528ENUM\u7c7b\u578b\u3002ENUM\u7c7b\u578b\u53ef\u4ee5\u5c06\u5b57\u6bb5\u7684\u503c\u9650\u5b9a\u5728\u4e00\u4e2a\u6307\u5b9a\u7684\u503c\u5217\u8868\u4e2d\uff0c\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u53ea\u80fd\u5b58\u50a8\u9884\u5148\u5b9a\u4e49\u7684\u503c\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u5728MySQL\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b\u6027\u522b\u4fe1\u606f\u7684\u8868\uff0c\u5e76\u8bbe\u7f6e\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u4e3aENUM\u7c7b\u578b\uff1a<\/p>\n<pre>-- \u521b\u5efa\u5305\u542b\u6027\u522b\u4fe1\u606f\u7684\u8868\nCREATE TABLE user (\n    id INT PRIMARY KEY,\n    name VARCHAR(50),\n    gender ENUM('\u7537', '\u5973', '\u672a\u77e5') -- \u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u4e3aENUM\u7c7b\u578b\uff0c\u53ea\u80fd\u5b58\u50a8'\u7537'\u3001'\u5973'\u548c'\u672a\u77e5'\u4e09\u79cd\u503c\u4e2d\u7684\u4e00\u4e2a\n);\n\n-- \u63d2\u5165\u6570\u636e\nINSERT INTO user (id, name, gender) VALUES (1, '\u5f20\u4e09', '\u7537');\nINSERT INTO user (id, name, gender) VALUES (2, '\u674e\u56db', '\u5973');\nINSERT INTO user (id, name, gender) VALUES (3, '\u738b\u4e94', '\u672a\u77e5');\n\n-- \u67e5\u8be2\u6570\u636e\nSELECT * FROM user;<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u9488\u5bf9\u6027\u522b\u5b57\u6bb5gender\uff0c\u6211\u4eec\u8bbe\u7f6e\u5176\u6570\u636e\u7c7b\u578b\u4e3aENUM(&#8216;\u7537&#8217;, &#8216;\u5973&#8217;, &#8216;\u672a\u77e5&#8217;)\uff0c\u8fd9\u6837\u5728\u63d2\u5165\u6570\u636e\u65f6\u53ea\u80fd\u9009\u62e9\u8fd9\u4e09\u4e2a\u503c\u4e2d\u7684\u4e00\u4e2a\u3002\u540c\u65f6\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542bid\u3001name\u548cgender\u5b57\u6bb5\u7684user\u8868\uff0c\u5e76\u5206\u522b\u63d2\u5165\u4e86\u4e09\u6761\u6570\u636e\u3002\u6700\u540e\u901a\u8fc7SELECT\u8bed\u53e5\u67e5\u8be2\u6570\u636e\uff0c\u9a8c\u8bc1\u6570\u636e\u6210\u529f\u63d2\u5165\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u6e05\u6670\u5730\u4e86\u89e3\u5728MySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5e76\u4f7f\u7528ENUM\u7c7b\u578b\u9650\u5b9a\u5b57\u6bb5\u503c\u7684\u8303\u56f4\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aMySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8emysql,\u6027\u522b,\u6570\u636e\u7c7b\u578b\u7684\u5185\u5bb9\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>MySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u6027\u522b\u5b57\u6bb5\u7684\u6570&#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-200008","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200008","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=200008"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200008\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}