{"id":76406,"date":"2024-10-16T06:24:16","date_gmt":"2024-10-15T22:24:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76406\/"},"modified":"2024-10-16T06:24:17","modified_gmt":"2024-10-15T22:24:17","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e8%a3%a1%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8c%e9%8e%96%e5%ae%9a%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76406\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u8868\u88e1\u5982\u4f55\u9032\u884c\u9396\u5b9a\uff1f"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e8%a3%a1%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8c%e9%8e%96%e5%ae%9a%ef%bc%9f-FgGTMboqnd\">MySQL\u6578\u64da\u5eab\u8868\u88e1\u5982\u4f55\u9032\u884c\u9396\u5b9a\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u9396\u5b9a\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7279\u5225\u662f\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0eMySQL\u4e2d\u9396\u5b9a\u7684\u57fa\u672c\u6982\u5ff5\u3001\u985e\u578b\u4ee5\u53ca\u5982\u4f55\u5728\u6578\u64da\u5eab\u8868\u4e2d\u9032\u884c\u9396\u5b9a\u3002<\/p>\n<h2 id=\"%e9%8e%96%e5%ae%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-FgGTMboqnd\">\u9396\u5b9a\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u9396\u5b9a\u662f\u6307\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u70ba\u4e86\u9632\u6b62\u5176\u4ed6\u7528\u6236\u540c\u6642\u8a2a\u554f\u6216\u4fee\u6539\u67d0\u4e9b\u6578\u64da\u800c\u5c0d\u9019\u4e9b\u6578\u64da\u9032\u884c\u7684\u63a7\u5236\u3002\u9396\u5b9a\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u7279\u5225\u662f\u5728\u57f7\u884c\u4e8b\u52d9\u6642\u3002MySQL\u652f\u6301\u884c\u7d1a\u9396\u548c\u8868\u7d1a\u9396\u5169\u7a2e\u4e3b\u8981\u7684\u9396\u5b9a\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"%e9%8e%96%e5%ae%9a%e7%9a%84%e9%a1%9e%e5%9e%8b-FgGTMboqnd\">\u9396\u5b9a\u7684\u985e\u578b<\/h2>\n<h3 id=\"1-%e8%a1%8c%e7%b4%9a%e9%8e%96-FgGTMboqnd\">1. \u884c\u7d1a\u9396<\/h3>\n<p>\u884c\u7d1a\u9396\u662f\u6307\u5c0d\u6578\u64da\u8868\u4e2d\u7684\u67d0\u4e00\u884c\u9032\u884c\u9396\u5b9a\u3002\u9019\u7a2e\u9396\u5b9a\u65b9\u5f0f\u5141\u8a31\u5176\u4ed6\u7528\u6236\u4ecd\u7136\u53ef\u4ee5\u8a2a\u554f\u8868\u4e2d\u7684\u5176\u4ed6\u884c\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u4e26\u767c\u6027\u3002\u884c\u7d1a\u9396\u901a\u5e38\u5728\u4f7f\u7528InnoDB\u5b58\u5132\u5f15\u64ce\u6642\u81ea\u52d5\u5be6\u73fe\u3002<\/p>\n<h3 id=\"2-%e8%a1%a8%e7%b4%9a%e9%8e%96-FgGTMboqnd\">2. \u8868\u7d1a\u9396<\/h3>\n<p>\u8868\u7d1a\u9396\u662f\u6307\u5c0d\u6574\u500b\u6578\u64da\u8868\u9032\u884c\u9396\u5b9a\u3002\u9019\u610f\u5473\u8457\u5728\u9396\u5b9a\u671f\u9593\uff0c\u5176\u4ed6\u7528\u6236\u7121\u6cd5\u8a2a\u554f\u8a72\u8868\u7684\u4efb\u4f55\u884c\u3002\u8868\u7d1a\u9396\u7684\u512a\u9ede\u662f\u5be6\u73fe\u7c21\u55ae\uff0c\u4f46\u7f3a\u9ede\u662f\u6703\u964d\u4f4e\u4e26\u767c\u6027\uff0c\u56e0\u70ba\u5176\u4ed6\u7528\u6236\u5fc5\u9808\u7b49\u5f85\u9396\u5b9a\u89e3\u9664\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e9%80%b2%e8%a1%8c%e9%8e%96%e5%ae%9a-FgGTMboqnd\">\u5982\u4f55\u5728MySQL\u4e2d\u9032\u884c\u9396\u5b9a<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\u4f86\u9032\u884c\u9396\u5b9a\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8select-for-update-FgGTMboqnd\">1. \u4f7f\u7528SELECT &#8230; FOR UPDATE<\/h3>\n<p>\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5728\u67e5\u8a62\u6642\u5c0d\u9078\u5b9a\u7684\u884c\u9032\u884c\u9396\u5b9a\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u57f7\u884c\u9019\u500b\u67e5\u8a62\u6642\uff0c\u5176\u4ed6\u4e8b\u52d9\u5c07\u7121\u6cd5\u4fee\u6539\u9019\u4e9b\u884c\uff0c\u76f4\u5230\u7576\u524d\u4e8b\u52d9\u63d0\u4ea4\u6216\u56de\u6efe\u3002<\/p>\n<pre><code>START TRANSACTION;\nSELECT * FROM your_table WHERE condition FOR UPDATE;\n-- \u9032\u884c\u6578\u64da\u4fee\u6539\nCOMMIT;\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8lock-tables-FgGTMboqnd\">2. \u4f7f\u7528LOCK TABLES<\/h3>\n<p>\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u9396\u5b9a\u6574\u500b\u8868\u3002\u4f7f\u7528LOCK TABLES\u6642\uff0c\u5fc5\u9808\u6307\u5b9a\u9396\u5b9a\u7684\u985e\u578b\uff08\u8b80\u53d6\u6216\u5beb\u5165\uff09\u3002<\/p>\n<pre><code>LOCK TABLES your_table WRITE;\n-- \u9032\u884c\u6578\u64da\u4fee\u6539\nUNLOCK TABLES;\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e8%a1%8c%e7%b4%9a%e9%8e%96-FgGTMboqnd\">3. \u4f7f\u7528\u884c\u7d1a\u9396<\/h3>\n<p>\u5728InnoDB\u5b58\u5132\u5f15\u64ce\u4e2d\uff0c\u884c\u7d1a\u9396\u662f\u81ea\u52d5\u5be6\u73fe\u7684\u3002\u7576\u4f60\u57f7\u884cINSERT\u3001UPDATE\u6216DELETE\u64cd\u4f5c\u6642\uff0cMySQL\u6703\u81ea\u52d5\u5c0d\u53d7\u5f71\u97ff\u7684\u884c\u9032\u884c\u9396\u5b9a\u3002<\/p>\n<h2 id=\"%e9%8e%96%e5%ae%9a%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-FgGTMboqnd\">\u9396\u5b9a\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u9396\u5b9a\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u907f\u514d\u6b7b\u9396\uff1a\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b7b\u9396\u3002\u53ef\u4ee5\u901a\u904e\u5408\u7406\u7684\u4e8b\u52d9\u8a2d\u8a08\u548c\u9396\u5b9a\u9806\u5e8f\u4f86\u907f\u514d\u3002<\/li>\n<li>\u9069\u7576\u4f7f\u7528\u9396\u5b9a\uff1a\u904e\u5ea6\u4f7f\u7528\u9396\u5b9a\u6703\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9396\u5b9a\u65b9\u5f0f\u3002<\/li>\n<li>\u76e3\u63a7\u9396\u5b9a\u60c5\u6cc1\uff1a\u4f7f\u7528SHOW PROCESSLIST\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7576\u524d\u7684\u9396\u5b9a\u60c5\u6cc1\uff0c\u5e6b\u52a9\u53ca\u6642\u767c\u73fe\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FgGTMboqnd\">\u7e3d\u7d50<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u9396\u5b9a\u662f\u4e00\u500b\u95dc\u9375\u7684\u529f\u80fd\uff0c\u80fd\u5920\u6709\u6548\u5730\u4fdd\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u884c\u7d1a\u9396\u548c\u8868\u7d1a\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u6709\u6548\u7ba1\u7406\u6578\u64da\u64cd\u4f5c\u3002\u4e86\u89e3\u9396\u5b9a\u7684\u57fa\u672c\u6982\u5ff5\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c0d\u65bc\u4efb\u4f55\u4f7f\u7528MySQL\u7684\u958b\u767c\u8005\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728MySQL\u6578\u64da\u5eab\u8868\u4e2d\u9032\u884c\u9396\u5b9a\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u4e26\u767c\u885d\u7a81\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-76406","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76406","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=76406"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76406\/revisions"}],"predecessor-version":[{"id":76407,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76406\/revisions\/76407"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}