{"id":75630,"date":"2024-10-15T23:54:15","date_gmt":"2024-10-15T15:54:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75630\/"},"modified":"2024-10-15T23:54:16","modified_gmt":"2024-10-15T15:54:16","slug":"mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99-%e4%bf%9d%e9%9a%9c%e6%95%b8%e6%93%9a%e5%ae%8c%e6%95%b4%e6%80%a7%e7%9a%84%e6%9b%b4%e4%bd%b3%e5%b7%a5%e5%85%b7%e3%80%82-mysql","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75630\/","title":{"rendered":"MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u2014\u2014\u4fdd\u969c\u6578\u64da\u5b8c\u6574\u6027\u7684\u66f4\u4f73\u5de5\u5177\u3002 (MySQL\u6578\u64da\u5eab\u4e8b\u52d9)"},"content":{"rendered":"<h1 id=\"mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99-%e4%bf%9d%e9%9a%9c%e6%95%b8%e6%93%9a%e5%ae%8c%e6%95%b4%e6%80%a7%e7%9a%84%e6%9b%b4%e4%bd%b3%e5%b7%a5%e5%85%b7-OeQufvidPI\">MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u2014\u2014\u4fdd\u969c\u6578\u64da\u5b8c\u6574\u6027\u7684\u66f4\u4f73\u5de5\u5177<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u5c0d\u65bc\u4efb\u4f55\u61c9\u7528\u7a0b\u5e8f\u7684\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002MySQL \u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u4e8b\u52d9\u652f\u6301\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u78ba\u4fdd\u6578\u64da\u7684\u53ef\u9760\u6027\u548c\u4e00\u81f4\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u7684\u6982\u5ff5\u3001\u7279\u6027\u53ca\u5176\u5728\u4fdd\u969c\u6578\u64da\u5b8c\u6574\u6027\u65b9\u9762\u7684\u4f5c\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%ef%bc%9f-OeQufvidPI\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u4e8b\u52d9\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u4e8b\u52d9\u662f\u4e00\u7d44\u64cd\u4f5c\u7684\u96c6\u5408\uff0c\u9019\u4e9b\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\u3002\u9019\u7a2e\u7279\u6027\u88ab\u7a31\u70ba\u539f\u5b50\u6027\uff08Atomicity\uff09\u3002\u5728 MySQL \u4e2d\uff0c\u4e8b\u52d9\u901a\u5e38\u6d89\u53ca\u591a\u500b SQL \u8a9e\u53e5\uff0c\u9019\u4e9b\u8a9e\u53e5\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u5fc5\u9808\u4fdd\u6301\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9b%9b%e5%a4%a7%e7%89%b9%e6%80%a7%ef%bc%88acid%ef%bc%89-OeQufvidPI\">\u4e8b\u52d9\u7684\u56db\u5927\u7279\u6027\uff08ACID\uff09<\/h2>\n<p>MySQL \u7684\u4e8b\u52d9\u9075\u5faa ACID \u539f\u5247\uff0c\u9019\u56db\u500b\u7279\u6027\u5206\u5225\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u539f\u5b50\u6027\uff08Atomicity\uff09<\/strong>\uff1a\u4e8b\u52d9\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u57f7\u884c\uff0c\u8981\u9ebc\u5168\u90e8\u4e0d\u57f7\u884c\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\uff08Consistency\uff09<\/strong>\uff1a\u4e8b\u52d9\u7684\u57f7\u884c\u5fc5\u9808\u4f7f\u6578\u64da\u5eab\u5f9e\u4e00\u500b\u4e00\u81f4\u7684\u72c0\u614b\u8f49\u8b8a\u5230\u53e6\u4e00\u500b\u4e00\u81f4\u7684\u72c0\u614b\u3002<\/li>\n<li><strong>\u9694\u96e2\u6027\uff08Isolation\uff09<\/strong>\uff1a\u540c\u6642\u57f7\u884c\u7684\u4e8b\u52d9\u4e0d\u61c9\u76f8\u4e92\u5e72\u64fe\uff0c\u6bcf\u500b\u4e8b\u52d9\u7684\u57f7\u884c\u7d50\u679c\u5c0d\u5176\u4ed6\u4e8b\u52d9\u662f\u4e0d\u53ef\u898b\u7684\uff0c\u76f4\u5230\u4e8b\u52d9\u63d0\u4ea4\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff08Durability\uff09<\/strong>\uff1a\u4e00\u65e6\u4e8b\u52d9\u63d0\u4ea4\uff0c\u5176\u7d50\u679c\u61c9\u6c38\u4e45\u4fdd\u5b58\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u5373\u4f7f\u7cfb\u7d71\u5d29\u6f70\u4e5f\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-mysql-%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99-OeQufvidPI\">\u5982\u4f55\u5728 MySQL \u4e2d\u4f7f\u7528\u4e8b\u52d9<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u4f7f\u7528\u4e8b\u52d9\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<pre><code>START TRANSACTION;  -- \u958b\u59cb\u4e8b\u52d9\n-- \u57f7\u884c\u591a\u500b SQL \u64cd\u4f5c\nUPDATE accounts SET balance = balance - 100 WHERE user_id = 1;\nUPDATE accounts SET balance = balance + 100 WHERE user_id = 2;\nCOMMIT;  -- \u63d0\u4ea4\u4e8b\u52d9\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u51fa\u73fe\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528 ROLLBACK \u4f86\u64a4\u92b7\u6240\u6709\u64cd\u4f5c\uff1a<\/p>\n<pre><code>ROLLBACK;  -- \u64a4\u92b7\u4e8b\u52d9\n<\/code><\/pre>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-OeQufvidPI\">\u4e8b\u52d9\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u4e8b\u52d9\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u91d1\u878d\u4ea4\u6613<\/strong>\uff1a\u5728\u9280\u884c\u7cfb\u7d71\u4e2d\uff0c\u8f49\u8cec\u64cd\u4f5c\u5fc5\u9808\u78ba\u4fdd\u8cc7\u91d1\u5f9e\u4e00\u500b\u8cec\u6236\u8f49\u79fb\u5230\u53e6\u4e00\u500b\u8cec\u6236\u7684\u904e\u7a0b\u4e2d\u4e0d\u6703\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<li><strong>\u96fb\u5b50\u5546\u52d9<\/strong>\uff1a\u5728\u8cfc\u7269\u8eca\u7d50\u7b97\u904e\u7a0b\u4e2d\uff0c\u5fc5\u9808\u78ba\u4fdd\u5546\u54c1\u5eab\u5b58\u7684\u6e1b\u5c11\u548c\u8a02\u55ae\u7684\u751f\u6210\u662f\u539f\u5b50\u6027\u7684\u3002<\/li>\n<li><strong>\u6578\u64da\u9077\u79fb<\/strong>\uff1a\u5728\u6578\u64da\u9077\u79fb\u904e\u7a0b\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-OeQufvidPI\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u662f\u4fdd\u969c\u6578\u64da\u5b8c\u6574\u6027\u7684\u91cd\u8981\u5de5\u5177\uff0c\u901a\u904e\u9075\u5faa ACID \u539f\u5247\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5728\u591a\u7a2e\u64cd\u4f5c\u4e0b\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u7121\u8ad6\u662f\u5728\u91d1\u878d\u3001\u96fb\u5b50\u5546\u52d9\u9084\u662f\u6578\u64da\u9077\u79fb\u7b49\u5834\u666f\u4e2d\uff0c\u4e8b\u52d9\u7684\u4f7f\u7528\u90fd\u80fd\u6709\u6548\u9632\u6b62\u6578\u64da\u932f\u8aa4\u548c\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u6578\u64da\u5b8c\u6574\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u6709\u8208\u8da3\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u6578\u64da\u5eab\u4e8b\u52d9\u5982\u4f55\u6709\u6548\u4fdd\u969c\u6578\u64da\u5b8c\u6574\u6027\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u7684\u53ef\u9760\u6027\u8207\u4e00\u81f4\u6027\uff0c\u78ba\u4fdd\u696d\u52d9\u904b\u884c\u9806\u66a2\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-75630","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75630","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=75630"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75630\/revisions"}],"predecessor-version":[{"id":75631,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75630\/revisions\/75631"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}