{"id":76798,"date":"2024-10-16T10:01:16","date_gmt":"2024-10-16T02:01:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76798\/"},"modified":"2024-10-16T10:01:17","modified_gmt":"2024-10-16T02:01:17","slug":"mysql%e9%8e%96%e9%82%a3%e4%ba%9b%e4%ba%8b%e5%85%92","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76798\/","title":{"rendered":"MySQL\u9396\u90a3\u4e9b\u4e8b\u5152"},"content":{"rendered":"<h1 id=\"mysql%e9%8e%96%e9%82%a3%e4%ba%9b%e4%ba%8b%e5%85%92-JbEBBPFfjs\">MySQL\u9396\u90a3\u4e9b\u4e8b\u5152<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u6a5f\u5236\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u985e\u578b\u548c\u6a5f\u5236\uff0c\u4ee5\u61c9\u5c0d\u4e0d\u540c\u7684\u4e26\u767c\u9700\u6c42\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u4e2d\u7684\u9396\u6a5f\u5236\uff0c\u5305\u62ec\u9396\u7684\u985e\u578b\u3001\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-JbEBBPFfjs\">\u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u9396\u662f\u4e00\u7a2e\u63a7\u5236\u5c0d\u6578\u64da\u5eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\uff0c\u4e3b\u8981\u7528\u65bc\u9632\u6b62\u6578\u64da\u7af6\u722d\u548c\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\uff0c\u7576\u591a\u500b\u7528\u6236\u540c\u6642\u8a2a\u554f\u548c\u4fee\u6539\u6578\u64da\u6642\uff0c\u9396\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u7684\u640d\u58de\u6216\u4e0d\u4e00\u81f4\u3002<\/p>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e9%8e%96%e9%a1%9e%e5%9e%8b-JbEBBPFfjs\">MySQL\u4e2d\u7684\u9396\u985e\u578b<\/h2>\n<p>MySQL\u4e3b\u8981\u6709\u5169\u7a2e\u9396\uff1a\u884c\u9396\u548c\u8868\u9396\u3002<\/p>\n<h3 id=\"%e8%a1%8c%e9%8e%96-JbEBBPFfjs\">\u884c\u9396<\/h3>\n<p>\u884c\u9396\u662f\u6307\u5c0d\u6578\u64da\u8868\u4e2d\u7684\u67d0\u4e00\u884c\u9032\u884c\u9396\u5b9a\uff0c\u9019\u6a23\u5176\u4ed6\u7528\u6236\u4ecd\u7136\u53ef\u4ee5\u8a2a\u554f\u8a72\u8868\u4e2d\u7684\u5176\u4ed6\u884c\u3002\u884c\u9396\u7684\u512a\u9ede\u5728\u65bc\u5b83\u80fd\u5920\u63d0\u9ad8\u4e26\u767c\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002MySQL\u4f7f\u7528\u7684\u884c\u9396\u4e3b\u8981\u662f\u57fa\u65bcInnoDB\u5b58\u5132\u5f15\u64ce\u7684\u3002<\/p>\n<pre><code>-- \u793a\u4f8b\uff1a\u4f7f\u7528\u884c\u9396\nSTART TRANSACTION;\nSELECT * FROM users WHERE id = 1 FOR UPDATE;\n-- \u9032\u884c\u6578\u64da\u4fee\u6539\nUPDATE users SET balance = balance - 100 WHERE id = 1;\nCOMMIT;\n<\/code><\/pre>\n<h3 id=\"%e8%a1%a8%e9%8e%96-JbEBBPFfjs\">\u8868\u9396<\/h3>\n<p>\u8868\u9396\u662f\u6307\u5c0d\u6574\u500b\u8868\u9032\u884c\u9396\u5b9a\uff0c\u9019\u6a23\u5176\u4ed6\u7528\u6236\u5728\u9396\u5b9a\u671f\u9593\u7121\u6cd5\u8a2a\u554f\u8a72\u8868\u3002\u8868\u9396\u7684\u512a\u9ede\u662f\u5be6\u73fe\u7c21\u55ae\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<pre><code>-- \u793a\u4f8b\uff1a\u4f7f\u7528\u8868\u9396\nLOCK TABLES users WRITE;\n-- \u9032\u884c\u6578\u64da\u4fee\u6539\nUPDATE users SET balance = balance - 100 WHERE id = 1;\nUNLOCK TABLES;\n<\/code><\/pre>\n<h2 id=\"%e9%8e%96%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-JbEBBPFfjs\">\u9396\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>MySQL\u4f7f\u7528\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u7ba1\u7406\u6578\u64da\u7684\u4e26\u767c\u8a2a\u554f\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u8a2a\u554f\u67d0\u500b\u6578\u64da\u6642\uff0c\u5b83\u6703\u9996\u5148\u6aa2\u67e5\u8a72\u6578\u64da\u662f\u5426\u88ab\u5176\u4ed6\u4e8b\u52d9\u9396\u5b9a\u3002\u5982\u679c\u672a\u88ab\u9396\u5b9a\uff0c\u5247\u8a72\u4e8b\u52d9\u53ef\u4ee5\u7372\u5f97\u9396\u4e26\u9032\u884c\u64cd\u4f5c\uff1b\u5982\u679c\u5df2\u88ab\u9396\u5b9a\uff0c\u5247\u8a72\u4e8b\u52d9\u5c07\u9032\u5165\u7b49\u5f85\u72c0\u614b\uff0c\u76f4\u5230\u9396\u88ab\u91cb\u653e\u3002<\/p>\n<h2 id=\"%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c-JbEBBPFfjs\">\u6b7b\u9396\u554f\u984c<\/h2>\n<p>\u5728\u4f7f\u7528\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u6b7b\u9396\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u3002\u6b7b\u9396\u767c\u751f\u5728\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u6642\uff0c\u5c0e\u81f4\u6240\u6709\u4e8b\u52d9\u90fd\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002MySQL\u6703\u81ea\u52d5\u6aa2\u6e2c\u6b7b\u9396\u4e26\u9078\u64c7\u4e00\u500b\u4e8b\u52d9\u9032\u884c\u56de\u6efe\uff0c\u4ee5\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u3002<\/p>\n<h3 id=\"%e9%81%bf%e5%85%8d%e6%ad%bb%e9%8e%96%e7%9a%84%e7%ad%96%e7%95%a5-JbEBBPFfjs\">\u907f\u514d\u6b7b\u9396\u7684\u7b56\u7565<\/h3>\n<ul>\n<li>\u4fdd\u6301\u4e8b\u52d9\u77ed\u5c0f\uff1a\u76e1\u91cf\u6e1b\u5c11\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593\uff0c\u964d\u4f4e\u9396\u6301\u6709\u7684\u6642\u9593\u3002<\/li>\n<li>\u7d71\u4e00\u9396\u7684\u7372\u53d6\u9806\u5e8f\uff1a\u78ba\u4fdd\u6240\u6709\u4e8b\u52d9\u6309\u7167\u76f8\u540c\u7684\u9806\u5e8f\u7372\u53d6\u9396\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u9694\u96e2\u7d1a\u5225\uff1a\u6839\u64da\u61c9\u7528\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u4ee5\u6e1b\u5c11\u9396\u7684\u7af6\u722d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JbEBBPFfjs\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u4e2d\u7684\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002\u4e86\u89e3\u4e0d\u540c\u985e\u578b\u7684\u9396\u53ca\u5176\u5de5\u4f5c\u539f\u7406\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u61c9\u7528\u6642\u505a\u51fa\u66f4\u660e\u667a\u7684\u9078\u64c7\u3002\u7121\u8ad6\u662f\u9078\u64c7\u884c\u9396\u9084\u662f\u8868\u9396\uff0c\u5408\u7406\u7684\u9396\u7b56\u7565\u90fd\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\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>\u63a2\u7d22MySQL\u9396\u7684\u904b\u4f5c\u539f\u7406\u3001\u985e\u578b\u53ca\u5176\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\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-76798","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76798","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=76798"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76798\/revisions"}],"predecessor-version":[{"id":76799,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76798\/revisions\/76799"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}