{"id":163851,"date":"2024-11-05T02:57:25","date_gmt":"2024-11-04T18:57:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163851\/"},"modified":"2024-11-05T02:57:27","modified_gmt":"2024-11-04T18:57:27","slug":"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e6%99%82%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81%e7%9a%84%e5%95%8f%e9%a1%8c-%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163851\/","title":{"rendered":"\u89e3\u6c7a\u6578\u64da\u5eab\u6279\u91cf\u63d2\u5165\u6642\u4e3b\u9375\u885d\u7a81\u7684\u554f\u984c (\u6279\u91cf\u63d2\u5165\u6578\u64da\u5eab \u4e3b\u9375\u6709\u885d\u7a81)"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e6%99%82%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81%e7%9a%84%e5%95%8f%e9%a1%8c-EFoBpvOmhJ\">\u89e3\u6c7a\u6578\u64da\u5eab\u6279\u91cf\u63d2\u5165\u6642\u4e3b\u9375\u885d\u7a81\u7684\u554f\u984c<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u3002\u6279\u91cf\u63d2\u5165\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u65b9\u5f0f\uff0c\u4f46\u5728\u9019\u500b\u904e\u7a0b\u4e2d\uff0c\u4e3b\u9375\u885d\u7a81\u7684\u554f\u984c\u7d93\u5e38\u6703\u51fa\u73fe\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81%ef%bc%9f-EFoBpvOmhJ\">\u4ec0\u9ebc\u662f\u4e3b\u9375\u885d\u7a81\uff1f<\/h2>\n<p>\u4e3b\u9375\u662f\u6578\u64da\u5eab\u4e2d\u7528\u4f86\u552f\u4e00\u6a19\u8b58\u6bcf\u4e00\u689d\u8a18\u9304\u7684\u5b57\u6bb5\u3002\u5728\u6279\u91cf\u63d2\u5165\u6578\u64da\u6642\uff0c\u5982\u679c\u63d2\u5165\u7684\u6578\u64da\u4e2d\u6709\u91cd\u8907\u7684\u4e3b\u9375\u503c\uff0c\u5c31\u6703\u5c0e\u81f4\u4e3b\u9375\u885d\u7a81\u3002\u9019\u7a2e\u60c5\u6cc1\u6703\u5f15\u767c\u932f\u8aa4\uff0c\u4e26\u4f7f\u5f97\u6574\u500b\u63d2\u5165\u64cd\u4f5c\u5931\u6557\u3002\u4e3b\u9375\u885d\u7a81\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u9084\u6703\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<h2 id=\"%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-EFoBpvOmhJ\">\u4e3b\u9375\u885d\u7a81\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u91cd\u8907\u6578\u64da\uff1a<\/strong>\u5728\u6279\u91cf\u63d2\u5165\u7684\u6578\u64da\u96c6\u4e2d\uff0c\u53ef\u80fd\u5b58\u5728\u91cd\u8907\u7684\u4e3b\u9375\u503c\u3002<\/li>\n<li><strong>\u4e26\u767c\u63d2\u5165\uff1a<\/strong>\u591a\u500b\u7528\u6236\u6216\u9032\u7a0b\u540c\u6642\u5617\u8a66\u63d2\u5165\u76f8\u540c\u7684\u4e3b\u9375\u503c\u3002<\/li>\n<li><strong>\u6578\u64da\u6e90\u554f\u984c\uff1a<\/strong>\u5f9e\u5916\u90e8\u6578\u64da\u6e90\u5c0e\u5165\u6578\u64da\u6642\uff0c\u53ef\u80fd\u7121\u6cd5\u4fdd\u8b49\u4e3b\u9375\u7684\u552f\u4e00\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81%e7%9a%84%e7%ad%96%e7%95%a5-EFoBpvOmhJ\">\u89e3\u6c7a\u4e3b\u9375\u885d\u7a81\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%94%af%e4%b8%80%e7%b4%84%e6%9d%9f-EFoBpvOmhJ\">1. \u4f7f\u7528\u552f\u4e00\u7d04\u675f<\/h3>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u8a2d\u7f6e\u552f\u4e00\u7d04\u675f\u53ef\u4ee5\u9632\u6b62\u91cd\u8907\u7684\u4e3b\u9375\u503c\u88ab\u63d2\u5165\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u5728\u6279\u91cf\u63d2\u5165\u6642\uff0c\u5982\u679c\u6709\u91cd\u8907\u7684\u4e3b\u9375\uff0c\u6578\u64da\u5eab\u4e5f\u6703\u81ea\u52d5\u62d2\u7d55\u9019\u4e9b\u91cd\u8907\u7684\u8a18\u9304\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100) UNIQUE\n);<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8insert-ignore%e6%88%96on-duplicate-key-update-EFoBpvOmhJ\">2. \u4f7f\u7528INSERT IGNORE\u6216ON DUPLICATE KEY UPDATE<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528INSERT IGNORE\u8a9e\u53e5\u4f86\u5ffd\u7565\u91cd\u8907\u7684\u4e3b\u9375\u63d2\u5165\uff0c\u6216\u8005\u4f7f\u7528ON DUPLICATE KEY UPDATE\u8a9e\u53e5\u4f86\u66f4\u65b0\u5df2\u5b58\u5728\u7684\u8a18\u9304\u3002<\/p>\n<pre><code>INSERT IGNORE INTO users (id, name, email) VALUES (1, 'Alice', 'alice@example.com');<\/code><\/pre>\n<pre><code>INSERT INTO users (id, name, email) VALUES (1, 'Alice', 'alice@example.com')\nON DUPLICATE KEY UPDATE name='Alice', email='alice@example.com';<\/code><\/pre>\n<h3 id=\"3-%e5%85%88%e6%aa%a2%e6%9f%a5%e5%86%8d%e6%8f%92%e5%85%a5-EFoBpvOmhJ\">3. \u5148\u6aa2\u67e5\u518d\u63d2\u5165<\/h3>\n<p>\u5728\u9032\u884c\u6279\u91cf\u63d2\u5165\u4e4b\u524d\uff0c\u53ef\u4ee5\u5148\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u662f\u5426\u5df2\u5b58\u5728\u76f8\u540c\u7684\u4e3b\u9375\u503c\u3002\u9019\u7a2e\u65b9\u6cd5\u96d6\u7136\u6548\u7387\u8f03\u4f4e\uff0c\u4f46\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e3b\u9375\u885d\u7a81\u3002<\/p>\n<pre><code>SELECT id FROM users WHERE id IN (1, 2, 3);<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e8%87%a8%e6%99%82%e8%a1%a8-EFoBpvOmhJ\">4. \u4f7f\u7528\u81e8\u6642\u8868<\/h3>\n<p>\u5c07\u8981\u63d2\u5165\u7684\u6578\u64da\u5148\u653e\u5165\u4e00\u500b\u81e8\u6642\u8868\u4e2d\uff0c\u7136\u5f8c\u518d\u5f9e\u81e8\u6642\u8868\u4e2d\u9078\u64c7\u4e0d\u91cd\u8907\u7684\u6578\u64da\u63d2\u5165\u5230\u4e3b\u8868\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u904e\u6ffe\u6389\u91cd\u8907\u7684\u4e3b\u9375\u503c\u3002<\/p>\n<pre><code>CREATE TEMPORARY TABLE temp_users (id INT, name VARCHAR(100), email VARCHAR(100));\nINSERT INTO temp_users (id, name, email) VALUES (1, 'Alice', 'alice@example.com'), (2, 'Bob', 'bob@example.com');\n\nINSERT INTO users (id, name, email)\nSELECT DISTINCT id, name, email FROM temp_users\nON DUPLICATE KEY UPDATE name=VALUES(name), email=VALUES(email);<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-EFoBpvOmhJ\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u7684\u6279\u91cf\u63d2\u5165\u904e\u7a0b\u4e2d\uff0c\u4e3b\u9375\u885d\u7a81\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u7b56\u7565\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u552f\u4e00\u7d04\u675f\u3001INSERT IGNORE\u3001\u6aa2\u67e5\u91cd\u8907\u6578\u64da\u9084\u662f\u4f7f\u7528\u81e8\u6642\u8868\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6548\u7387\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a\u6578\u64da\u5eab\u6279\u91cf\u63d2\u5165\u6642\u4e3b\u9375\u885d\u7a81\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7b56\u7565\u548c\u65b9\u6cd5\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u8207\u63d2\u5165\u6548\u7387\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-163851","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163851","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=163851"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163851\/revisions"}],"predecessor-version":[{"id":163852,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163851\/revisions\/163852"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}