{"id":176885,"date":"2024-11-08T12:33:17","date_gmt":"2024-11-08T04:33:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/176885\/"},"modified":"2024-11-08T12:33:18","modified_gmt":"2024-11-08T04:33:18","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a4-%e5%b7%b2%e9%81%94%e5%88%b0%e6%9c%80%e5%a4%a7%e5%88%97%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/176885\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4 &#8211; \u5df2\u9054\u5230\u6700\u5927\u5217\u6578"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a4-%e5%b7%b2%e9%81%94%e5%88%b0%e6%9c%80%e5%a4%a7%e5%88%97%e6%95%b8-MXEtZItXwG\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4 &#8211; 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id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-MXEtZItXwG\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9\u201c\u5df2\u9054\u5230\u6700\u5927\u5217\u6578\u201d\u7684\u932f\u8aa4\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e8%a1%a8%e7%b5%90%e6%a7%8b-MXEtZItXwG\">1. \u512a\u5316\u8868\u7d50\u69cb<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u8868\u7684\u8a2d\u8a08\uff0c\u78ba\u4fdd\u6bcf\u4e00\u5217\u90fd\u662f\u5fc5\u8981\u7684\u3002\u53ef\u4ee5\u8003\u616e\u5c07\u4e00\u4e9b\u5217\u5408\u4f75\uff0c\u6216\u8005\u5c07\u67d0\u4e9b\u6578\u64da\u79fb\u5230\u53e6\u4e00\u500b\u8868\u4e2d\uff0c\u4ee5\u6e1b\u5c11\u5217\u6578\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u5305\u542b\u7528\u6236\u7684\u591a\u500b\u806f\u7e6b\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8003\u616e\u5c07\u806f\u7e6b\u65b9\u5f0f\u79fb\u5230\u4e00\u500b\u55ae\u7368\u7684\u8868\u4e2d\u3002<\/p>\n<pre><code>CREATE TABLE user_contacts (\n    user_id INT,\n    contact_type VARCHAR(50),\n    contact_value VARCHAR(100),\n    PRIMARY KEY (user_id, contact_type)\n);<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-MXEtZItXwG\">2. \u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u985e\u578b<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u6bcf\u884c\u7684\u5927\u5c0f\uff0c\u5f9e\u800c\u63d0\u9ad8\u8868\u7684\u6027\u80fd\u3002\u907f\u514d\u4f7f\u7528\u904e\u5927\u7684\u6578\u64da\u985e\u578b\uff0c\u4f8b\u5982\u4f7f\u7528VARCHAR(255)\u800c\u4e0d\u662fTEXT\uff0c\u9664\u975e\u5fc5\u8981\u3002<\/p>\n<h3 id=\"3-%e5%88%86%e5%89%b2%e8%a1%a8-MXEtZItXwG\">3. 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