{"id":76938,"date":"2024-10-16T10:13:16","date_gmt":"2024-10-16T02:13:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76938\/"},"modified":"2024-10-16T10:13:16","modified_gmt":"2024-10-16T02:13:16","slug":"mysql%e5%a4%96%e9%8d%b5%e7%94%a8%e6%b3%95%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76938\/","title":{"rendered":"Mysql\u5916\u9375\u7528\u6cd5\u5206\u6790"},"content":{"rendered":"<h1 id=\"mysql%e5%a4%96%e9%8d%b5%e7%94%a8%e6%b3%95%e5%88%86%e6%9e%90-TMWzBmTVxU\">MySQL\u5916\u9375\u7528\u6cd5\u5206\u6790<\/h1>\n<p>\u5728\u95dc\u806f\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u5916\u9375\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u7528\u65bc\u5efa\u7acb\u548c\u5f37\u5316\u8868\u4e4b\u9593\u7684\u95dc\u806f\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5c0d\u5916\u9375\u7684\u652f\u6301\uff0c\u4f7f\u5f97\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u5f97\u4ee5\u7dad\u8b77\u3002\u672c\u6587\u5c07\u6df1\u5165\u5206\u6790MySQL\u4e2d\u7684\u5916\u9375\u7528\u6cd5\uff0c\u5305\u62ec\u5176\u5b9a\u7fa9\u3001\u529f\u80fd\u3001\u4ee5\u53ca\u5982\u4f55\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4f7f\u7528\u5916\u9375\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%a4%96%e9%8d%b5%ef%bc%9f-TMWzBmTVxU\">\u4ec0\u9ebc\u662f\u5916\u9375\uff1f<\/h2>\n<p>\u5916\u9375\u662f\u6307\u4e00\u500b\u8868\u4e2d\u7684\u4e00\u500b\u6216\u591a\u500b\u5b57\u6bb5\uff0c\u9019\u4e9b\u5b57\u6bb5\u7684\u503c\u5fc5\u9808\u8207\u53e6\u4e00\u500b\u8868\u4e2d\u7684\u4e3b\u9375\u6216\u552f\u4e00\u9375\u7684\u503c\u76f8\u5339\u914d\u3002\u5916\u9375\u7684\u4e3b\u8981\u76ee\u7684\u662f\u78ba\u4fdd\u6578\u64da\u7684\u53c3\u7167\u5b8c\u6574\u6027\uff0c\u9632\u6b62\u51fa\u73fe\u5b64\u7acb\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%8d%b5%e7%9a%84%e5%8a%9f%e8%83%bd-TMWzBmTVxU\">\u5916\u9375\u7684\u529f\u80fd<\/h2>\n<ul>\n<li><strong>\u53c3\u7167\u5b8c\u6574\u6027\uff1a<\/strong>\u5916\u9375\u78ba\u4fdd\u4e86\u6578\u64da\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u9632\u6b62\u4e86\u7121\u6548\u6578\u64da\u7684\u63d2\u5165\u3002<\/li>\n<li><strong>\u7d1a\u806f\u64cd\u4f5c\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u6578\u64da\u88ab\u522a\u9664\u6216\u66f4\u65b0\u6642\uff0c\u53ef\u4ee5\u9078\u64c7\u81ea\u52d5\u66f4\u65b0\u6216\u522a\u9664\u76f8\u95dc\u7684\u5f9e\u8868\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u901a\u904e\u5916\u9375\u7d04\u675f\uff0c\u6578\u64da\u5eab\u80fd\u5920\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u907f\u514d\u51fa\u73fe\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%a4%96%e9%8d%b5-TMWzBmTVxU\">\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u5916\u9375<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u5275\u5efa\u5916\u9375\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5230\u5169\u500b\u8868\uff1a\u4e3b\u8868\u548c\u5f9e\u8868\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u5916\u9375\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e4%b8%bb%e8%a1%a8-TMWzBmTVxU\">1. \u5275\u5efa\u4e3b\u8868<\/h3>\n<pre><code>\nCREATE TABLE customers (\n    customer_id INT AUTO_INCREMENT,\n    customer_name VARCHAR(100),\n    PRIMARY KEY (customer_id)\n);\n<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e5%be%9e%e8%a1%a8%e4%b8%a6%e6%b7%bb%e5%8a%a0%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f-TMWzBmTVxU\">2. \u5275\u5efa\u5f9e\u8868\u4e26\u6dfb\u52a0\u5916\u9375\u7d04\u675f<\/h3>\n<pre><code>\nCREATE TABLE orders (\n    order_id INT AUTO_INCREMENT,\n    order_date DATE,\n    customer_id INT,\n    PRIMARY KEY (order_id),\n    FOREIGN KEY (customer_id) REFERENCES customers(customer_id)\n);\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c`customers`\u8868\u662f\u4e3b\u8868\uff0c`orders`\u8868\u662f\u5f9e\u8868\u3002`customer_id`\u5b57\u6bb5\u5728`orders`\u8868\u4e2d\u4f5c\u70ba\u5916\u9375\uff0c\u53c3\u7167`customers`\u8868\u4e2d\u7684`customer_id`\u5b57\u6bb5\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%8d%b5%e7%9a%84%e7%b4%9a%e8%81%af%e6%93%8d%e4%bd%9c-TMWzBmTVxU\">\u5916\u9375\u7684\u7d1a\u806f\u64cd\u4f5c<\/h2>\n<p>MySQL\u652f\u6301\u591a\u7a2e\u7d1a\u806f\u64cd\u4f5c\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>ON DELETE CASCADE\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u522a\u9664\u6642\uff0c\u5f9e\u8868\u4e2d\u6240\u6709\u76f8\u95dc\u7684\u8a18\u9304\u4e5f\u6703\u88ab\u81ea\u52d5\u522a\u9664\u3002<\/li>\n<li><strong>ON UPDATE CASCADE\uff1a<\/strong>\u7576\u4e3b\u8868\u4e2d\u7684\u8a18\u9304\u88ab\u66f4\u65b0\u6642\uff0c\u5f9e\u8868\u4e2d\u6240\u6709\u76f8\u95dc\u7684\u8a18\u9304\u4e5f\u6703\u81ea\u52d5\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8%e7%b4%9a%e8%81%af%e6%93%8d%e4%bd%9c-TMWzBmTVxU\">\u793a\u4f8b\uff1a\u4f7f\u7528\u7d1a\u806f\u64cd\u4f5c<\/h3>\n<pre><code>\nCREATE TABLE orders (\n    order_id INT AUTO_INCREMENT,\n    order_date DATE,\n    customer_id INT,\n    PRIMARY KEY (order_id),\n    FOREIGN KEY (customer_id) REFERENCES customers(customer_id)\n    ON DELETE CASCADE\n    ON UPDATE CASCADE\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576`customers`\u8868\u4e2d\u7684\u67d0\u500b\u5ba2\u6236\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8207\u8a72\u5ba2\u6236\u76f8\u95dc\u7684\u8a02\u55ae\u4e5f\u6703\u81ea\u52d5\u88ab\u522a\u9664\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%8d%b5%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-TMWzBmTVxU\">\u5916\u9375\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5916\u9375\u7d04\u675f\u53ea\u80fd\u5728InnoDB\u5b58\u5132\u5f15\u64ce\u4e2d\u4f7f\u7528\uff0c\u5176\u4ed6\u5b58\u5132\u5f15\u64ce\u5982MyISAM\u4e0d\u652f\u6301\u5916\u9375\u3002<\/li>\n<li>\u5728\u5275\u5efa\u5916\u9375\u6642\uff0c\u53c3\u7167\u7684\u5b57\u6bb5\u5fc5\u9808\u662f\u4e3b\u9375\u6216\u552f\u4e00\u9375\u3002<\/li>\n<li>\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u5f9e\u8868\u4e2d\u7684\u5916\u9375\u503c\u5b58\u5728\u65bc\u4e3b\u8868\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TMWzBmTVxU\">\u7e3d\u7d50<\/h2>\n<p>\u5916\u9375\u5728MySQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u7528\u65bc\u7dad\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528\u5916\u9375\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u4e4b\u9593\u7684\u95dc\u806f\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5206\u6790MySQL\u5916\u9375\u7528\u6cd5\uff0c\u63a2\u8a0e\u5176\u5728\u6578\u64da\u5b8c\u6574\u6027\u3001\u95dc\u806f\u6027\u53ca\u6027\u80fd\u512a\u5316\u4e2d\u7684\u91cd\u8981\u6027\u8207\u5be6\u8e10\u6280\u5de7\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-76938","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76938","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=76938"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76938\/revisions"}],"predecessor-version":[{"id":76939,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76938\/revisions\/76939"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}