{"id":158415,"date":"2024-11-03T01:40:28","date_gmt":"2024-11-02T17:40:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/158415\/"},"modified":"2024-11-03T01:40:29","modified_gmt":"2024-11-02T17:40:29","slug":"%e6%90%9e%e5%ae%9a-mysql-%e4%ba%8b%e5%8b%99%ef%bc%9a%e5%8e%9f%e7%90%86%e8%a7%a3%e6%9e%90%ef%bc%88mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%8e%9f%e7%90%86%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/158415\/","title":{"rendered":"\u641e\u5b9a MySQL \u4e8b\u52d9\uff1a\u539f\u7406\u89e3\u6790\uff08MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u539f\u7406\uff09"},"content":{"rendered":"<h1 id=\"%e6%90%9e%e5%ae%9a-mysql-%e4%ba%8b%e5%8b%99%ef%bc%9a%e5%8e%9f%e7%90%86%e8%a7%a3%e6%9e%90%ef%bc%88mysql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99%e5%8e%9f%e7%90%86%ef%bc%89-gEBhJAzerM\">\u641e\u5b9a MySQL \u4e8b\u52d9\uff1a\u539f\u7406\u89e3\u6790\uff08MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u539f\u7406\uff09<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u4e8b\u52d9\uff08Transaction\uff09\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u6982\u5ff5\u3002MySQL \u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u4e8b\u52d9\u652f\u6301\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MySQL \u7684\u4e8b\u52d9\u539f\u7406\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u6709\u6548\u5730\u4f7f\u7528\u4e8b\u52d9\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%ba%8b%e5%8b%99%ef%bc%9f-gEBhJAzerM\">\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\u7a2e\u7279\u6027\u88ab\u7a31\u70ba\u539f\u5b50\u6027\uff08Atomicity\uff09\u3002\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u4e8b\u52d9\u901a\u5e38\u6d89\u53ca\u591a\u500b SQL \u8a9e\u53e5\u7684\u57f7\u884c\uff0c\u4f8b\u5982\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u3002\u4e8b\u52d9\u7684\u4e3b\u8981\u7279\u6027\u53ef\u4ee5\u7528 ACID \u539f\u5247\u4f86\u63cf\u8ff0\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\u4e4b\u9593\u4e0d\u61c9\u8a72\u4e92\u76f8\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\u8a72\u662f\u6c38\u4e45\u7684\uff0c\u5373\u4f7f\u7cfb\u7d71\u5d29\u6f70\u4e5f\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"mysql-%e4%b8%ad%e7%9a%84%e4%ba%8b%e5%8b%99%e6%94%af%e6%8c%81-gEBhJAzerM\">MySQL \u4e2d\u7684\u4e8b\u52d9\u652f\u6301<\/h2>\n<p>MySQL \u652f\u6301\u4e8b\u52d9\u7684\u5b58\u5132\u5f15\u64ce\u4e3b\u8981\u662f InnoDB\u3002InnoDB \u63d0\u4f9b\u4e86\u5b8c\u6574\u7684 ACID \u4e8b\u52d9\u652f\u6301\uff0c\u4e26\u4e14\u652f\u6301\u884c\u7d1a\u9396\u5b9a\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e0b\u8868\u73fe\u826f\u597d\u3002<\/p>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-gEBhJAzerM\">\u4e8b\u52d9\u7684\u57fa\u672c\u64cd\u4f5c<\/h3>\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\n    INSERT INTO users (name, age) VALUES ('Alice', 30);\n    UPDATE accounts SET balance = balance - 100 WHERE user_id = 1;\nCOMMIT;  -- \u63d0\u4ea4\u4e8b\u52d9\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u4f7f\u7528 <code>START TRANSACTION<\/code> \u958b\u59cb\u4e00\u500b\u4e8b\u52d9\uff0c\u7136\u5f8c\u57f7\u884c\u591a\u500b SQL \u64cd\u4f5c\uff0c\u6700\u5f8c\u4f7f\u7528 <code>COMMIT<\/code> \u63d0\u4ea4\u4e8b\u52d9\u3002\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>ROLLBACK<\/code> \u4f86\u64a4\u92b7\u4e8b\u52d9\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%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-gEBhJAzerM\">\u4e8b\u52d9\u7684\u9694\u96e2\u7d1a\u5225<\/h2>\n<p>MySQL \u63d0\u4f9b\u4e86\u56db\u7a2e\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u9019\u4e9b\u7d1a\u5225\u6c7a\u5b9a\u4e86\u4e8b\u52d9\u4e4b\u9593\u7684\u53ef\u898b\u6027\u548c\u5e72\u64fe\u7a0b\u5ea6\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\u53ef\u80fd\u6703\u5c0e\u81f4\u9ad2\u8b80\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\u5c0e\u81f4\u4e0d\u53ef\u91cd\u8907\u8b80\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\u5c0e\u81f4\u5e7b\u8b80\u3002<\/li>\n<li><strong>\u4e32\u884c\u5316\uff08SERIALIZABLE\uff09<\/strong>\uff1a\u6700\u56b4\u683c\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u6240\u6709\u4e8b\u52d9\u4e32\u884c\u57f7\u884c\uff0c\u907f\u514d\u4e86\u6240\u6709\u7684\u4e26\u767c\u554f\u984c\uff0c\u4f46\u6027\u80fd\u8f03\u4f4e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8-gEBhJAzerM\">\u4e8b\u52d9\u7684\u5be6\u969b\u61c9\u7528<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u4e8b\u52d9\u901a\u5e38\u7528\u65bc\u8655\u7406\u6d89\u53ca\u591a\u500b\u6b65\u9a5f\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\u9280\u884c\u8f49\u8cec\u3002\u5728\u8f49\u8cec\u904e\u7a0b\u4e2d\uff0c\u5fc5\u9808\u78ba\u4fdd\u5f9e\u4e00\u500b\u8cec\u6236\u6263\u9664\u91d1\u984d\u548c\u5411\u53e6\u4e00\u500b\u8cec\u6236\u6dfb\u52a0\u91d1\u984d\u9019\u5169\u500b\u64cd\u4f5c\u8981\u9ebc\u540c\u6642\u6210\u529f\uff0c\u8981\u9ebc\u540c\u6642\u5931\u6557\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u70ba\u7cfb\u7d71\u6545\u969c\u6216\u5176\u4ed6\u554f\u984c\u5c0e\u81f4\u7684\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gEBhJAzerM\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u7684\u4e8b\u52d9\u652f\u6301\u662f\u5176\u5f37\u5927\u529f\u80fd\u7684\u4e00\u90e8\u5206\uff0c\u901a\u904e\u7406\u89e3\u4e8b\u52d9\u7684\u539f\u7406\u548c\u7279\u6027\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5728\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u6642\uff0c\u8003\u616e\u5230\u6578\u64da\u5eab\u7684\u4e8b\u52d9\u8655\u7406\u80fd\u529b\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u4e86\u89e3 MySQL \u4e8b\u52d9\u7684\u904b\u4f5c\u539f\u7406\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790 MySQL \u6578\u64da\u5eab\u4e8b\u52d9\u539f\u7406\uff0c\u638c\u63e1\u4e8b\u52d9\u7684\u57fa\u672c\u6982\u5ff5\u3001ACID \u7279\u6027\u53ca\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u61c9\u7528\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-158415","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158415","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=158415"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158415\/revisions"}],"predecessor-version":[{"id":158416,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158415\/revisions\/158416"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=158415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=158415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=158415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}