{"id":187200,"date":"2024-11-11T12:17:18","date_gmt":"2024-11-11T04:17:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187200\/"},"modified":"2024-11-11T12:17:19","modified_gmt":"2024-11-11T04:17:19","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%9f%ba%e7%a4%8e%e6%93%8d%e4%bd%9c%e7%b0%a1%e8%bf%b0-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187200\/","title":{"rendered":"\u6578\u64da\u5eab\u4e8b\u52d9\u57fa\u790e\u64cd\u4f5c\u7c21\u8ff0 (\u6578\u64da\u5eab\u4e8b\u52d9\u57fa\u672c\u64cd\u4f5c)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%9f%ba%e7%a4%8e%e6%93%8d%e4%bd%9c%e7%b0%a1%e8%bf%b0-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-yimnQUltdn\">\u6578\u64da\u5eab\u4e8b\u52d9\u57fa\u790e\u64cd\u4f5c\u7c21\u8ff0 (\u6578\u64da\u5eab\u4e8b\u52d9\u57fa\u672c\u64cd\u4f5c)<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u4e8b\u52d9\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u6a5f\u5236\u3002\u6578\u64da\u5eab\u4e8b\u52d9\u7684\u57fa\u672c\u64cd\u4f5c\u5305\u62ec\u958b\u59cb\u4e8b\u52d9\u3001\u63d0\u4ea4\u4e8b\u52d9\u548c\u56de\u6efe\u4e8b\u52d9\u3002\u672c\u6587\u5c07\u5c0d\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u9032\u884c\u8a73\u7d30\u4ecb\u7d39\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\uff0c\u4ee5\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u5eab\u4e8b\u52d9\u7684\u904b\u4f5c\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-yimnQUltdn\">\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\u4e8b\u52d9\u7684\u4e3b\u8981\u76ee\u7684\u662f\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\uff0c\u7279\u5225\u662f\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u3002\u4e8b\u52d9\u901a\u5e38\u9075\u5faaACID\u539f\u5247\uff0c\u5373\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u96e2\u6027\u548c\u6301\u4e45\u6027\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-yimnQUltdn\">\u6578\u64da\u5eab\u4e8b\u52d9\u7684\u57fa\u672c\u64cd\u4f5c<\/h2>\n<h3 id=\"1-%e9%96%8b%e5%a7%8b%e4%ba%8b%e5%8b%99-yimnQUltdn\">1. \u958b\u59cb\u4e8b\u52d9<\/h3>\n<p>\u5728\u9032\u884c\u4efb\u4f55\u6578\u64da\u64cd\u4f5c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u958b\u59cb\u4e00\u500b\u4e8b\u52d9\u3002\u9019\u53ef\u4ee5\u901a\u904e\u57f7\u884c\u7279\u5b9a\u7684SQL\u8a9e\u53e5\u4f86\u5be6\u73fe\u3002\u5728\u5927\u591a\u6578\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u4f86\u958b\u59cb\u4e8b\u52d9\uff1a<\/p>\n<pre><code>START TRANSACTION;<\/code><\/pre>\n<p>\u6216\u8005\u5728\u67d0\u4e9b\u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>BEGIN;<\/code><\/pre>\n<h3 id=\"2-%e6%8f%90%e4%ba%a4%e4%ba%8b%e5%8b%99-yimnQUltdn\">2. \u63d0\u4ea4\u4e8b\u52d9<\/h3>\n<p>\u7576\u6240\u6709\u7684\u64cd\u4f5c\u90fd\u6210\u529f\u57f7\u884c\u5f8c\uff0c\u60a8\u9700\u8981\u63d0\u4ea4\u4e8b\u52d9\uff0c\u4ee5\u4fbf\u5c07\u6240\u6709\u7684\u8b8a\u66f4\u6c38\u4e45\u4fdd\u5b58\u5230\u6578\u64da\u5eab\u4e2d\u3002\u63d0\u4ea4\u4e8b\u52d9\u7684SQL\u8a9e\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre><code>COMMIT;<\/code><\/pre>\n<p>\u9019\u500b\u64cd\u4f5c\u6703\u5c07\u4e8b\u52d9\u4e2d\u7684\u6240\u6709\u8b8a\u66f4\u5beb\u5165\u6578\u64da\u5eab\uff0c\u4e26\u91cb\u653e\u76f8\u95dc\u7684\u8cc7\u6e90\u3002<\/p>\n<h3 id=\"3-%e5%9b%9e%e6%bb%be%e4%ba%8b%e5%8b%99-yimnQUltdn\">3. \u56de\u6efe\u4e8b\u52d9<\/h3>\n<p>\u5982\u679c\u5728\u4e8b\u52d9\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u932f\u8aa4\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u56de\u6efe\u4e8b\u52d9\uff0c\u9019\u6a23\u6240\u6709\u7684\u8b8a\u66f4\u5c07\u88ab\u64a4\u92b7\uff0c\u6578\u64da\u5eab\u5c07\u6062\u5fa9\u5230\u4e8b\u52d9\u958b\u59cb\u4e4b\u524d\u7684\u72c0\u614b\u3002\u56de\u6efe\u4e8b\u52d9\u7684SQL\u8a9e\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre><code>ROLLBACK;<\/code><\/pre>\n<p>\u9019\u500b\u64cd\u4f5c\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u9632\u6b62\u4e0d\u4e00\u81f4\u7684\u6578\u64da\u72c0\u614b\u51fa\u73fe\u3002<\/p>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e7%a4%ba%e4%be%8b-yimnQUltdn\">\u4e8b\u52d9\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u4e8b\u52d9\u4f86\u66f4\u65b0\u8cec\u6236\u9918\u984d\uff1a<\/p>\n<pre><code>START TRANSACTION;\n\nUPDATE accounts SET balance = balance - 100 WHERE account_id = 1;\nUPDATE accounts SET balance = balance + 100 WHERE account_id = 2;\n\nCOMMIT;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5f9e\u8cec\u62361\u4e2d\u6263\u9664100\u5143\uff0c\u4e26\u5c07\u5176\u6dfb\u52a0\u5230\u8cec\u62362\u4e2d\u3002\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u932f\u8aa4\uff0c\u4f8b\u5982\u8cec\u62361\u7684\u9918\u984d\u4e0d\u8db3\uff0c\u5247\u53ef\u4ee5\u4f7f\u7528\u56de\u6efe\u64cd\u4f5c\u4f86\u64a4\u92b7\u6240\u6709\u8b8a\u66f4\uff1a<\/p>\n<pre><code>ROLLBACK;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-yimnQUltdn\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u4e8b\u52d9\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u6a5f\u5236\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528\u958b\u59cb\u4e8b\u52d9\u3001\u63d0\u4ea4\u4e8b\u52d9\u548c\u56de\u6efe\u4e8b\u52d9\u7684\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u8b8a\u66f4\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u7406\u89e3\u548c\u904b\u7528\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5c0d\u65bc\u69cb\u5efa\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u61c9\u7528\u7a0b\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u4e8b\u52d9\u7684\u64cd\u4f5c\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6578\u64da\u5eab\u4e8b\u52d9\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5305\u62ec\u63d0\u4ea4\u3001\u56de\u6efe\u548c\u9396\u5b9a\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\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-187200","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187200","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=187200"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187200\/revisions"}],"predecessor-version":[{"id":187201,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187200\/revisions\/187201"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}