{"id":169569,"date":"2024-11-06T19:13:20","date_gmt":"2024-11-06T11:13:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169569\/"},"modified":"2024-11-06T19:13:21","modified_gmt":"2024-11-06T11:13:21","slug":"%e6%98%8e%e6%98%8e%e5%8a%a0%e4%ba%86%e5%94%af%e4%b8%80%e7%b4%a2%e5%bc%95%ef%bc%8c%e7%82%ba%e4%bb%80%e9%ba%bc%e9%82%84%e6%98%af%e7%94%a2%e7%94%9f%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169569\/","title":{"rendered":"\u660e\u660e\u52a0\u4e86\u552f\u4e00\u7d22\u5f15\uff0c\u70ba\u4ec0\u9ebc\u9084\u662f\u7522\u751f\u91cd\u8907\u6578\u64da\uff1f"},"content":{"rendered":"<h1 id=\"%e6%98%8e%e6%98%8e%e5%8a%a0%e4%ba%86%e5%94%af%e4%b8%80%e7%b4%a2%e5%bc%95%ef%bc%8c%e7%82%ba%e4%bb%80%e9%ba%bc%e9%82%84%e6%98%af%e7%94%a2%e7%94%9f%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f-HWVJVzkeDg\">\u660e\u660e\u52a0\u4e86\u552f\u4e00\u7d22\u5f15\uff0c\u70ba\u4ec0\u9ebc\u9084\u662f\u7522\u751f\u91cd\u8907\u6578\u64da\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u552f\u4e00\u7d22\u5f15\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u65e8\u5728\u78ba\u4fdd\u67d0\u4e00\u5217\u6216\u591a\u5217\u7684\u6578\u64da\u5728\u6574\u500b\u8868\u4e2d\u662f\u552f\u4e00\u7684\u3002\u7136\u800c\uff0c\u8a31\u591a\u958b\u767c\u8005\u5728\u5be6\u969b\u64cd\u4f5c\u4e2d\u6703\u9047\u5230\u4e00\u500b\u56f0\u60d1\u7684\u554f\u984c\uff1a\u660e\u660e\u5df2\u7d93\u70ba\u67d0\u500b\u5b57\u6bb5\u52a0\u4e86\u552f\u4e00\u7d22\u5f15\uff0c\u70ba\u4ec0\u9ebc\u9084\u662f\u6703\u7522\u751f\u91cd\u8907\u6578\u64da\uff1f\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u73fe\u8c61\u7684\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e5%94%af%e4%b8%80%e7%b4%a2%e5%bc%95%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-HWVJVzkeDg\">\u552f\u4e00\u7d22\u5f15\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u552f\u4e00\u7d22\u5f15\u662f\u4e00\u7a2e\u7d04\u675f\u689d\u4ef6\uff0c\u78ba\u4fdd\u5728\u6578\u64da\u8868\u4e2d\u67d0\u4e00\u5217\u6216\u591a\u5217\u7684\u503c\u4e0d\u6703\u91cd\u8907\u3002\u7576\u6211\u5011\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u552f\u4e00\u7d22\u5f15\u6642\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u6703\u81ea\u52d5\u6aa2\u67e5\u63d2\u5165\u6216\u66f4\u65b0\u64cd\u4f5c\uff0c\u82e5\u767c\u73fe\u9055\u53cd\u552f\u4e00\u6027\u7d04\u675f\u7684\u6578\u64da\uff0c\u5247\u6703\u62d2\u7d55\u8a72\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%9c%83%e5%87%ba%e7%8f%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%ef%bc%9f-HWVJVzkeDg\">\u70ba\u4ec0\u9ebc\u6703\u51fa\u73fe\u91cd\u8907\u6578\u64da\uff1f<\/h2>\n<p>\u5118\u7ba1\u552f\u4e00\u7d22\u5f15\u7684\u5b58\u5728\u53ef\u4ee5\u9632\u6b62\u91cd\u8907\u6578\u64da\u7684\u63d2\u5165\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u91cd\u8907\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<h3 id=\"1-%e4%ba%8b%e5%8b%99%e6%9c%aa%e6%8f%90%e4%ba%a4-HWVJVzkeDg\">1. \u4e8b\u52d9\u672a\u63d0\u4ea4<\/h3>\n<p>\u5728\u4f7f\u7528\u4e8b\u52d9\u7684\u60c5\u6cc1\u4e0b\uff0c\u5982\u679c\u4e00\u500b\u4e8b\u52d9\u5c1a\u672a\u63d0\u4ea4\uff0c\u5176\u4ed6\u4e8b\u52d9\u53ef\u80fd\u7121\u6cd5\u770b\u5230\u8a72\u4e8b\u52d9\u7684\u8b8a\u66f4\u3002\u9019\u610f\u5473\u8457\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5169\u500b\u4e8b\u52d9\u53ef\u80fd\u540c\u6642\u5617\u8a66\u63d2\u5165\u76f8\u540c\u7684\u6578\u64da\uff0c\u5c0e\u81f4\u91cd\u8907\u6578\u64da\u7684\u51fa\u73fe\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\u3002<\/p>\n<h3 id=\"2-%e9%8c%af%e8%aa%a4%e7%9a%84%e7%b4%a2%e5%bc%95%e8%a8%ad%e7%bd%ae-HWVJVzkeDg\">2. \u932f\u8aa4\u7684\u7d22\u5f15\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u552f\u4e00\u7d22\u5f15\u7684\u8a2d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u4f8b\u5982\u5728\u591a\u5217\u7d22\u5f15\u4e2d\u672a\u5305\u542b\u6240\u6709\u61c9\u8a72\u552f\u4e00\u7684\u5217\uff0c\u90a3\u9ebc\u4ecd\u7136\u53ef\u80fd\u63d2\u5165\u91cd\u8907\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u4e26\u4e14\u53ea\u5c0d\u7528\u6236\u540d\u8a2d\u7f6e\u4e86\u552f\u4e00\u7d22\u5f15\uff0c\u4f46\u6c92\u6709\u5c0d\u96fb\u5b50\u90f5\u4ef6\u8a2d\u7f6e\u552f\u4e00\u7d22\u5f15\uff0c\u9019\u6a23\u5c31\u53ef\u80fd\u51fa\u73fe\u76f8\u540c\u7528\u6236\u540d\u4f46\u4e0d\u540c\u96fb\u5b50\u90f5\u4ef6\u7684\u60c5\u6cc1\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY,\n    username VARCHAR(50) UNIQUE,\n    email VARCHAR(100)\n);\n<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%8c%af%e8%aa%a4%e6%88%96%e6%95%85%e9%9a%9c-HWVJVzkeDg\">3. \u6578\u64da\u5eab\u7684\u932f\u8aa4\u6216\u6545\u969c<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u672c\u8eab\u53ef\u80fd\u6703\u51fa\u73fe\u932f\u8aa4\u6216\u6545\u969c\uff0c\u5c0e\u81f4\u552f\u4e00\u7d22\u5f15\u7121\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u6578\u64da\u5eab\u7684\u7248\u672c\u554f\u984c\u3001\u914d\u7f6e\u932f\u8aa4\u6216\u5176\u4ed6\u6280\u8853\u6545\u969c\u5f15\u8d77\u7684\u3002<\/p>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e5%b0%8e%e5%85%a5%e9%81%8e%e7%a8%8b%e4%b8%ad%e7%9a%84%e5%95%8f%e9%a1%8c-HWVJVzkeDg\">4. \u6578\u64da\u5c0e\u5165\u904e\u7a0b\u4e2d\u7684\u554f\u984c<\/h3>\n<p>\u5728\u6279\u91cf\u5c0e\u5165\u6578\u64da\u6642\uff0c\u5982\u679c\u6c92\u6709\u6b63\u78ba\u8655\u7406\u91cd\u8907\u6578\u64da\u7684\u60c5\u6cc1\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u91cd\u8907\u6578\u64da\u7684\u51fa\u73fe\u3002\u4f8b\u5982\uff0c\u5728\u4f7f\u7528 SQL \u7684 INSERT IGNORE \u6216 ON DUPLICATE KEY UPDATE \u8a9e\u53e5\u6642\uff0c\u5982\u679c\u672a\u6b63\u78ba\u8a2d\u7f6e\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u91cd\u8907\u6578\u64da\u7684\u63d2\u5165\u3002<\/p>\n<pre><code>INSERT INTO users (username, email) VALUES ('user1', 'user1@example.com')\nON DUPLICATE KEY UPDATE email = 'user1@example.com';\n<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%ba%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a%e5%95%8f%e9%a1%8c%ef%bc%9f-HWVJVzkeDg\">\u5982\u4f55\u89e3\u6c7a\u91cd\u8907\u6578\u64da\u554f\u984c\uff1f<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u91cd\u8907\u6578\u64da\u7684\u51fa\u73fe\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u500b\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5\u7d22\u5f15\u8a2d\u7f6e\uff1a<\/strong>\u78ba\u4fdd\u6240\u6709\u9700\u8981\u552f\u4e00\u7684\u5b57\u6bb5\u90fd\u5df2\u6b63\u78ba\u8a2d\u7f6e\u552f\u4e00\u7d22\u5f15\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\uff0c\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u5c0e\u5165\u6642\u7684\u6aa2\u67e5\uff1a<\/strong>\u5728\u6279\u91cf\u5c0e\u5165\u6578\u64da\u6642\uff0c\u5148\u6aa2\u67e5\u6578\u64da\u7684\u552f\u4e00\u6027\uff0c\u907f\u514d\u91cd\u8907\u6578\u64da\u7684\u63d2\u5165\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6e05\u7406\u6578\u64da\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u6578\u64da\u5eab\u4e2d\u7684\u91cd\u8907\u6578\u64da\uff0c\u4fdd\u6301\u6578\u64da\u7684\u6574\u6f54\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HWVJVzkeDg\">\u7e3d\u7d50<\/h2>\n<p>\u96d6\u7136\u552f\u4e00\u7d22\u5f15\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u91cd\u8907\u6578\u64da\u7684\u63d2\u5165\uff0c\u4f46\u5728\u5be6\u969b\u64cd\u4f5c\u4e2d\u4ecd\u7136\u53ef\u80fd\u56e0\u70ba\u591a\u7a2e\u539f\u56e0\u5c0e\u81f4\u91cd\u8907\u6578\u64da\u7684\u51fa\u73fe\u3002\u4e86\u89e3\u9019\u4e9b\u539f\u56e0\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u63aa\u65bd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u4fdd\u6301\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8a0e\u660e\u660e\u52a0\u4e86\u552f\u4e00\u7d22\u5f15\u537b\u4ecd\u7522\u751f\u91cd\u8907\u6578\u64da\u7684\u539f\u56e0\uff0c\u5206\u6790\u53ef\u80fd\u7684\u6578\u64da\u63d2\u5165\u65b9\u5f0f\u53ca\u7d22\u5f15\u9650\u5236\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-169569","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169569","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=169569"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169569\/revisions"}],"predecessor-version":[{"id":169570,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169569\/revisions\/169570"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}