{"id":173193,"date":"2024-11-07T15:57:17","date_gmt":"2024-11-07T07:57:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173193\/"},"modified":"2024-11-07T15:57:18","modified_gmt":"2024-11-07T07:57:18","slug":"%e5%a6%82%e4%bd%95%e8%99%95%e7%90%86%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e7%a4%ba%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e6%83%85%e6%b3%81-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e7%a4%ba%e5%b7%b2%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173193\/","title":{"rendered":"\u5982\u4f55\u8655\u7406\u6578\u64da\u5eab\u63d0\u793a\u5df2\u5b58\u5728\u7684\u60c5\u6cc1 (\u6578\u64da\u5eab\u63d0\u793a\u5df2\u5b58\u5728)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%99%95%e7%90%86%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e7%a4%ba%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e6%83%85%e6%b3%81-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e7%a4%ba%e5%b7%b2%e5%ad%98-dqSBlrVnqp\">\u5982\u4f55\u8655\u7406\u6578\u64da\u5eab\u63d0\u793a\u5df2\u5b58\u5728\u7684\u60c5\u6cc1 (\u6578\u64da\u5eab\u63d0\u793a\u5df2\u5b58\u5728)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d93\u5e38\u6703\u9047\u5230\u201c\u5df2\u5b58\u5728\u201d\u7684\u932f\u8aa4\u63d0\u793a\uff0c\u9019\u901a\u5e38\u662f\u56e0\u70ba\u5617\u8a66\u63d2\u5165\u4e00\u689d\u5df2\u7d93\u5b58\u5728\u7684\u8a18\u9304\u3002\u9019\u7a2e\u60c5\u6cc1\u5728\u4f7f\u7528\u95dc\u806f\u6578\u64da\u5eab\uff08\u5982 MySQL\u3001PostgreSQL \u7b49\uff09\u6642\u5c24\u70ba\u5e38\u898b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u8655\u7406\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=\"%e7%90%86%e8%a7%a3%e5%b7%b2%e5%ad%98%e5%9c%a8%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-dqSBlrVnqp\">\u7406\u89e3\u201c\u5df2\u5b58\u5728\u201d\u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u6578\u64da\u5eab\u63d0\u793a\u201c\u5df2\u5b58\u5728\u201d\u6642\uff0c\u901a\u5e38\u662f\u56e0\u70ba\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u9375\u885d\u7a81\uff1a<\/strong>\u6bcf\u500b\u8868\u901a\u5e38\u90fd\u6709\u4e00\u500b\u4e3b\u9375\uff0c\u9019\u662f\u7528\u4f86\u552f\u4e00\u6a19\u8b58\u6bcf\u4e00\u689d\u8a18\u9304\u7684\u3002\u5982\u679c\u5617\u8a66\u63d2\u5165\u4e00\u689d\u8a18\u9304\uff0c\u5176\u4e3b\u9375\u503c\u5df2\u7d93\u5b58\u5728\u65bc\u8868\u4e2d\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u552f\u4e00\u7d22\u5f15\u885d\u7a81\uff1a<\/strong>\u9664\u4e86\u4e3b\u9375\u5916\uff0c\u6578\u64da\u5eab\u9084\u53ef\u4ee5\u8a2d\u7f6e\u552f\u4e00\u7d22\u5f15\uff0c\u9019\u610f\u5473\u8457\u67d0\u4e9b\u5217\u7684\u503c\u5fc5\u9808\u662f\u552f\u4e00\u7684\u3002\u5982\u679c\u63d2\u5165\u7684\u503c\u9055\u53cd\u4e86\u9019\u4e00\u7d04\u675f\uff0c\u4e5f\u6703\u51fa\u73fe\u201c\u5df2\u5b58\u5728\u201d\u7684\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u8a2d\u8a08\u554f\u984c\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u53ef\u80fd\u4e0d\u5920\u5408\u7406\uff0c\u5c0e\u81f4\u91cd\u8907\u6578\u64da\u7684\u63d2\u5165\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-dqSBlrVnqp\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0d\u201c\u5df2\u5b58\u5728\u201d\u7684\u932f\u8aa4\u63d0\u793a\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-insert-ignore-dqSBlrVnqp\">1. \u4f7f\u7528 INSERT IGNORE<\/h3>\n<p>\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>INSERT IGNORE<\/code> \u8a9e\u53e5\u4f86\u907f\u514d\u63d2\u5165\u5df2\u5b58\u5728\u7684\u8a18\u9304\u3002\u9019\u6a23\uff0c\u5982\u679c\u63d2\u5165\u7684\u8a18\u9304\u5df2\u7d93\u5b58\u5728\uff0c\u6578\u64da\u5eab\u5c07\u5ffd\u7565\u8a72\u64cd\u4f5c\uff0c\u800c\u4e0d\u6703\u5831\u932f\u3002<\/p>\n<pre><code>INSERT IGNORE INTO users (id, name) VALUES (1, 'Alice');<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-on-duplicate-key-update-dqSBlrVnqp\">2. \u4f7f\u7528 ON DUPLICATE KEY UPDATE<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528 <code>ON DUPLICATE KEY UPDATE<\/code> \u8a9e\u53e5\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u63d2\u5165\u6642\u66f4\u65b0\u5df2\u5b58\u5728\u7684\u8a18\u9304\uff0c\u800c\u4e0d\u662f\u5831\u932f\u3002<\/p>\n<pre><code>INSERT INTO users (id, name) VALUES (1, 'Alice')\nON DUPLICATE KEY UPDATE name = 'Alice';<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e8%a8%98%e9%8c%84%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-dqSBlrVnqp\">3. \u6aa2\u67e5\u8a18\u9304\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u5728\u63d2\u5165\u4e4b\u524d\uff0c\u53ef\u4ee5\u5148\u6aa2\u67e5\u8a72\u8a18\u9304\u662f\u5426\u5df2\u5b58\u5728\u3002\u9019\u53ef\u4ee5\u901a\u904e\u57f7\u884c\u4e00\u500b <code>SELECT<\/code> \u67e5\u8a62\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>SELECT * FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u7d50\u679c\u70ba\u7a7a\uff0c\u5247\u53ef\u4ee5\u5b89\u5168\u5730\u63d2\u5165\u65b0\u8a18\u9304\uff1b\u5982\u679c\u7d50\u679c\u4e0d\u70ba\u7a7a\uff0c\u5247\u53ef\u4ee5\u9078\u64c7\u66f4\u65b0\u6216\u5ffd\u7565\u3002<\/p>\n<h3 id=\"4-%e8%a8%ad%e8%a8%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b5%90%e6%a7%8b-dqSBlrVnqp\">4. \u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb<\/h3>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u968e\u6bb5\uff0c\u61c9\u8a72\u4ed4\u7d30\u8003\u616e\u4e3b\u9375\u548c\u552f\u4e00\u7d22\u5f15\u7684\u8a2d\u7f6e\uff0c\u4ee5\u907f\u514d\u672a\u4f86\u51fa\u73fe\u91cd\u8907\u6578\u64da\u7684\u554f\u984c\u3002\u5408\u7406\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u53ef\u4ee5\u5927\u5927\u6e1b\u5c11\u6b64\u985e\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dqSBlrVnqp\">\u7e3d\u7d50<\/h2>\n<p>\u8655\u7406\u6578\u64da\u5eab\u63d0\u793a\u5df2\u5b58\u5728\u7684\u60c5\u6cc1\u662f\u4e00\u500b\u5e38\u898b\u7684\u6311\u6230\uff0c\u4f46\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684 SQL \u8a9e\u53e5\u548c\u826f\u597d\u7684\u6578\u64da\u5eab\u8a2d\u8a08\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <code>INSERT IGNORE<\/code>\u3001<code>ON DUPLICATE KEY UPDATE<\/code> \u9084\u662f\u4e8b\u5148\u6aa2\u67e5\u8a18\u9304\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52d9\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u8655\u7406\u6578\u64da\u5eab\u4e2d\u63d0\u793a\u5df2\u5b58\u5728\u7684\u60c5\u6cc1\uff0c\u907f\u514d\u91cd\u8907\u6578\u64da\u4e26\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\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-173193","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173193","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=173193"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173193\/revisions"}],"predecessor-version":[{"id":173194,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173193\/revisions\/173194"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}