{"id":185564,"date":"2024-11-10T22:37:26","date_gmt":"2024-11-10T14:37:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185564\/"},"modified":"2024-11-10T22:37:27","modified_gmt":"2024-11-10T14:37:27","slug":"%e4%ba%8b%e5%8b%99%e3%80%81%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5%e5%92%8c%e4%b8%a6%e7%99%bc%e4%b8%80%e8%87%b4%e6%80%a7%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185564\/","title":{"rendered":"\u4e8b\u52d9\u3001\u9694\u96e2\u7d1a\u5225\u548c\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c"},"content":{"rendered":"<h1 id=\"%e4%ba%8b%e5%8b%99%e3%80%81%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5%e5%92%8c%e4%b8%a6%e7%99%bc%e4%b8%80%e8%87%b4%e6%80%a7%e5%95%8f%e9%a1%8c-YgWNxrLkXb\">\u4e8b\u52d9\u3001\u9694\u96e2\u7d1a\u5225\u548c\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\uff0c\u4e8b\u52d9\u7ba1\u7406\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002\u4e8b\u52d9\u7684\u9694\u96e2\u7d1a\u5225\u76f4\u63a5\u5f71\u97ff\u5230\u4e26\u767c\u64cd\u4f5c\u7684\u884c\u70ba\uff0c\u9032\u800c\u5f71\u97ff\u5230\u6578\u64da\u7684\u4e00\u81f4\u6027\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u4e8b\u52d9\u7684\u6982\u5ff5\u3001\u4e0d\u540c\u7684\u9694\u96e2\u7d1a\u5225\u4ee5\u53ca\u5b83\u5011\u5c0d\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%ba%8b%e5%8b%99%ef%bc%9f-YgWNxrLkXb\">\u4ec0\u9ebc\u662f\u4e8b\u52d9\uff1f<\/h2>\n<p>\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\u4e00\u7279\u6027\u88ab\u7a31\u70ba\u539f\u5b50\u6027\uff08Atomicity\uff09\u3002\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u4e8b\u52d9\u901a\u5e38\u7528\u65bc\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u7279\u5225\u662f\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u3002\u4e8b\u52d9\u7684\u56db\u500b\u57fa\u672c\u7279\u6027\u88ab\u7a31\u70baACID\u7279\u6027\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\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\u4e26\u767c\u57f7\u884c\u7684\u4e8b\u52d9\u4e4b\u9593\u4e0d\u61c9\u76f8\u4e92\u5e72\u64fe\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\uff0c\u5373\u4f7f\u7cfb\u7d71\u5d29\u6f70\u4e5f\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5%e7%9a%84%e6%a6%82%e5%bf%b5-YgWNxrLkXb\">\u9694\u96e2\u7d1a\u5225\u7684\u6982\u5ff5<\/h2>\n<p>\u9694\u96e2\u7d1a\u5225\u5b9a\u7fa9\u4e86\u4e8b\u52d9\u4e4b\u9593\u7684\u76f8\u4e92\u5f71\u97ff\u7a0b\u5ea6\u3002SQL\u6a19\u6e96\u5b9a\u7fa9\u4e86\u56db\u7a2e\u4e3b\u8981\u7684\u9694\u96e2\u7d1a\u5225\uff1a<\/p>\n<ul>\n<li><strong>\u8b80\u672a\u63d0\u4ea4\uff08Read Uncommitted\uff09<\/strong>\uff1a\u4e8b\u52d9\u53ef\u4ee5\u8b80\u53d6\u5176\u4ed6\u4e8b\u52d9\u672a\u63d0\u4ea4\u7684\u6578\u64da\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u9ad2\u8b80\uff08Dirty Read\uff09\u3002<\/li>\n<li><strong>\u8b80\u5df2\u63d0\u4ea4\uff08Read Committed\uff09<\/strong>\uff1a\u4e8b\u52d9\u53ea\u80fd\u8b80\u53d6\u5df2\u63d0\u4ea4\u7684\u6578\u64da\uff0c\u907f\u514d\u4e86\u9ad2\u8b80\uff0c\u4f46\u53ef\u80fd\u6703\u51fa\u73fe\u4e0d\u53ef\u91cd\u8907\u8b80\uff08Non-repeatable Read\uff09\u3002<\/li>\n<li><strong>\u53ef\u91cd\u8907\u8b80\uff08Repeatable Read\uff09<\/strong>\uff1a\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u591a\u6b21\u8b80\u53d6\u540c\u4e00\u6578\u64da\u6642\uff0c\u7d50\u679c\u662f\u4e00\u81f4\u7684\uff0c\u907f\u514d\u4e86\u4e0d\u53ef\u91cd\u8907\u8b80\uff0c\u4f46\u53ef\u80fd\u6703\u51fa\u73fe\u5e7b\u8b80\uff08Phantom Read\uff09\u3002<\/li>\n<li><strong>\u5e8f\u5217\u5316\uff08Serializable\uff09<\/strong>\uff1a\u6700\u9ad8\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u4e8b\u52d9\u5b8c\u5168\u9694\u96e2\uff0c\u78ba\u4fdd\u7d50\u679c\u7684\u4e00\u81f4\u6027\uff0c\u4f46\u6027\u80fd\u958b\u92b7\u8f03\u5927\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%a6%e7%99%bc%e4%b8%80%e8%87%b4%e6%80%a7%e5%95%8f%e9%a1%8c-YgWNxrLkXb\">\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c<\/h2>\n<p>\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\uff0c\u4e26\u767c\u57f7\u884c\u7684\u4e8b\u52d9\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u9ad2\u8b80\uff08Dirty Read\uff09<\/strong>\uff1a\u4e00\u500b\u4e8b\u52d9\u8b80\u53d6\u4e86\u53e6\u4e00\u500b\u4e8b\u52d9\u672a\u63d0\u4ea4\u7684\u6578\u64da\uff0c\u82e5\u5f8c\u8005\u56de\u6efe\uff0c\u524d\u8005\u8b80\u53d6\u7684\u6578\u64da\u5c07\u662f\u7121\u6548\u7684\u3002<\/li>\n<li><strong>\u4e0d\u53ef\u91cd\u8907\u8b80\uff08Non-repeatable Read\uff09<\/strong>\uff1a\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\uff0c\u5c0d\u540c\u4e00\u6578\u64da\u7684\u591a\u6b21\u8b80\u53d6\u7d50\u679c\u4e0d\u540c\uff0c\u56e0\u70ba\u5176\u4ed6\u4e8b\u52d9\u5df2\u7d93\u4fee\u6539\u4e86\u8a72\u6578\u64da\u3002<\/li>\n<li><strong>\u5e7b\u8b80\uff08Phantom Read\uff09<\/strong>\uff1a\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\uff0c\u5c0d\u67e5\u8a62\u7d50\u679c\u7684\u591a\u6b21\u8b80\u53d6\u51fa\u73fe\u4e86\u4e0d\u540c\u7684\u884c\uff0c\u56e0\u70ba\u5176\u4ed6\u4e8b\u52d9\u63d2\u5165\u4e86\u65b0\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-YgWNxrLkXb\">\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\u9700\u8981\u8003\u616e\u61c9\u7528\u7684\u9700\u6c42\u548c\u6027\u80fd\u8981\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u4e00\u81f4\u6027\u7684\u61c9\u7528\uff0c\u5efa\u8b70\u4f7f\u7528\u53ef\u91cd\u8907\u8b80\u6216\u5e8f\u5217\u5316\u7d1a\u5225\uff1b\u800c\u5c0d\u65bc\u6027\u80fd\u8981\u6c42\u8f03\u9ad8\u4e14\u53ef\u4ee5\u5bb9\u5fcd\u4e00\u5b9a\u4e0d\u4e00\u81f4\u6027\u7684\u61c9\u7528\uff0c\u5247\u53ef\u4ee5\u9078\u64c7\u8b80\u5df2\u63d0\u4ea4\u6216\u8b80\u672a\u63d0\u4ea4\u7d1a\u5225\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-YgWNxrLkXb\">\u7d50\u8ad6<\/h2>\n<p>\u4e8b\u52d9\u3001\u9694\u96e2\u7d1a\u5225\u548c\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c\u662f\u6578\u64da\u5eab\u8a2d\u8a08\u548c\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6982\u5ff5\u3002\u7406\u89e3\u9019\u4e9b\u6982\u5ff5\u6709\u52a9\u65bc\u958b\u767c\u8005\u5728\u8a2d\u8a08\u7cfb\u7d71\u6642\u505a\u51fa\u66f4\u660e\u667a\u7684\u9078\u64c7\uff0c\u4ee5\u5e73\u8861\u6578\u64da\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u6027\u80fd\u3002\u5728\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\u6642\uff0c\u61c9\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u548c\u4f7f\u7528\u5834\u666f\u9032\u884c\u8003\u91cf\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8a0e\u4e8b\u52d9\u8655\u7406\u4e2d\u7684\u9694\u96e2\u7d1a\u5225\u53ca\u5176\u5c0d\u4e26\u767c\u4e00\u81f4\u6027\u554f\u984c\u7684\u5f71\u97ff\uff0c\u63ed\u793a\u5982\u4f55\u5e73\u8861\u6027\u80fd\u8207\u6578\u64da\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-185564","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185564","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=185564"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185564\/revisions"}],"predecessor-version":[{"id":185565,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185564\/revisions\/185565"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}