{"id":187296,"date":"2024-11-11T13:05:19","date_gmt":"2024-11-11T05:05:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187296\/"},"modified":"2024-11-11T13:05:21","modified_gmt":"2024-11-11T05:05:21","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8e%96%ef%bc%9a%e6%a8%82%e8%a7%80%e9%8e%96%e5%92%8c%e6%82%b2%e8%a7%80%e9%8e%96%e7%9a%84%e5%8d%80%e5%88%a5-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%a8%82%e8%a7%80%e9%8e%96%e8%88%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187296\/","title":{"rendered":"\u6578\u64da\u5eab\u9396\uff1a\u6a02\u89c0\u9396\u548c\u60b2\u89c0\u9396\u7684\u5340\u5225 (\u6578\u64da\u5eab\u6a02\u89c0\u9396\u8207\u60b2\u89c0\u9396)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8e%96%ef%bc%9a%e6%a8%82%e8%a7%80%e9%8e%96%e5%92%8c%e6%82%b2%e8%a7%80%e9%8e%96%e7%9a%84%e5%8d%80%e5%88%a5-ggMheeGOoB\">\u6578\u64da\u5eab\u9396\uff1a\u6a02\u89c0\u9396\u548c\u60b2\u89c0\u9396\u7684\u5340\u5225<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u4f7f\u7528\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7576\u591a\u500b\u7528\u6236\u6216\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u6578\u64da\u6642\uff0c\u9396\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u7684\u7af6\u722d\u689d\u4ef6\u548c\u4e0d\u4e00\u81f4\u6027\u3002\u6839\u64da\u9396\u7684\u7b56\u7565\uff0c\u6578\u64da\u5eab\u9396\u53ef\u4ee5\u5206\u70ba\u5169\u7a2e\u4e3b\u8981\u985e\u578b\uff1a\u6a02\u89c0\u9396\u548c\u60b2\u89c0\u9396\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u5169\u7a2e\u9396\u7684\u5340\u5225\u53ca\u5176\u9069\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%82%b2%e8%a7%80%e9%8e%96%ef%bc%9f-ggMheeGOoB\">\u4ec0\u9ebc\u662f\u60b2\u89c0\u9396\uff1f<\/h2>\n<p>\u60b2\u89c0\u9396\u662f\u4e00\u7a2e\u5047\u8a2d\u6578\u64da\u6703\u88ab\u983b\u7e41\u4fee\u6539\u7684\u9396\u7b56\u7565\u3002\u5728\u4f7f\u7528\u60b2\u89c0\u9396\u6642\uff0c\u7576\u4e00\u500b\u7528\u6236\u6216\u9032\u7a0b\u8a2a\u554f\u6578\u64da\u6642\uff0c\u7cfb\u7d71\u6703\u7acb\u5373\u5c0d\u8a72\u6578\u64da\u52a0\u9396\uff0c\u76f4\u5230\u8a72\u7528\u6236\u5b8c\u6210\u64cd\u4f5c\u4e26\u91cb\u653e\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u9396\u5b9a\u671f\u9593\uff0c\u5176\u4ed6\u7528\u6236\u7121\u6cd5\u5c0d\u8a72\u6578\u64da\u9032\u884c\u4efb\u4f55\u4fee\u6539\u3002<\/p>\n<h3 id=\"%e6%82%b2%e8%a7%80%e9%8e%96%e7%9a%84%e7%89%b9%e9%bb%9e-ggMheeGOoB\">\u60b2\u89c0\u9396\u7684\u7279\u9ede<\/h3>\n<ul>\n<li>\u5373\u6642\u52a0\u9396\uff1a\u5728\u8b80\u53d6\u6216\u5beb\u5165\u6578\u64da\u4e4b\u524d\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u52a0\u9396\u3002<\/li>\n<li>\u9577\u6642\u9593\u9396\u5b9a\uff1a\u9396\u5b9a\u6642\u9593\u53ef\u80fd\u8f03\u9577\uff0c\u7279\u5225\u662f\u5728\u64cd\u4f5c\u8907\u96dc\u6216\u8017\u6642\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li>\u9069\u7528\u65bc\u9ad8\u7af6\u722d\u74b0\u5883\uff1a\u7576\u591a\u500b\u7528\u6236\u540c\u6642\u8a2a\u554f\u540c\u4e00\u6578\u64da\u6642\uff0c\u60b2\u89c0\u9396\u80fd\u6709\u6548\u9632\u6b62\u6578\u64da\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h3 id=\"%e6%82%b2%e8%a7%80%e9%8e%96%e7%9a%84%e7%a4%ba%e4%be%8b-ggMheeGOoB\">\u60b2\u89c0\u9396\u7684\u793a\u4f8b<\/h3>\n<pre><code>\nBEGIN TRANSACTION;\n-- \u52a0\u9396\nSELECT * FROM users WHERE id = 1 FOR UPDATE;\n-- \u57f7\u884c\u6578\u64da\u4fee\u6539\nUPDATE users SET balance = balance - 100 WHERE id = 1;\nCOMMIT;\n<\/code><\/pre>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a8%82%e8%a7%80%e9%8e%96%ef%bc%9f-ggMheeGOoB\">\u4ec0\u9ebc\u662f\u6a02\u89c0\u9396\uff1f<\/h2>\n<p>\u6a02\u89c0\u9396\u5247\u662f\u4e00\u7a2e\u5047\u8a2d\u6578\u64da\u4e0d\u6703\u88ab\u983b\u7e41\u4fee\u6539\u7684\u9396\u7b56\u7565\u3002\u5728\u4f7f\u7528\u6a02\u89c0\u9396\u6642\uff0c\u7cfb\u7d71\u4e0d\u6703\u5728\u8b80\u53d6\u6578\u64da\u6642\u7acb\u5373\u52a0\u9396\uff0c\u800c\u662f\u5728\u6578\u64da\u66f4\u65b0\u6642\u6aa2\u67e5\u6578\u64da\u7684\u7248\u672c\u6216\u6642\u9593\u6233\u3002\u5982\u679c\u5728\u6b64\u671f\u9593\u6578\u64da\u672a\u88ab\u5176\u4ed6\u7528\u6236\u4fee\u6539\uff0c\u5247\u66f4\u65b0\u64cd\u4f5c\u5c07\u6210\u529f\uff1b\u5426\u5247\uff0c\u66f4\u65b0\u5c07\u5931\u6557\uff0c\u4e26\u9700\u8981\u91cd\u65b0\u5617\u8a66\u3002<\/p>\n<h3 id=\"%e6%a8%82%e8%a7%80%e9%8e%96%e7%9a%84%e7%89%b9%e9%bb%9e-ggMheeGOoB\">\u6a02\u89c0\u9396\u7684\u7279\u9ede<\/h3>\n<ul>\n<li>\u5ef6\u9072\u52a0\u9396\uff1a\u53ea\u6709\u5728\u6578\u64da\u66f4\u65b0\u6642\u624d\u6703\u6aa2\u67e5\u9396\u5b9a\u72c0\u614b\u3002<\/li>\n<li>\u63d0\u9ad8\u6027\u80fd\uff1a\u5728\u4f4e\u7af6\u722d\u74b0\u5883\u4e2d\uff0c\u6a02\u89c0\u9396\u80fd\u6e1b\u5c11\u9396\u7684\u958b\u92b7\uff0c\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\u3002<\/li>\n<li>\u9069\u7528\u65bc\u4f4e\u7af6\u722d\u74b0\u5883\uff1a\u7576\u6578\u64da\u4fee\u6539\u7684\u983b\u7387\u8f03\u4f4e\u6642\uff0c\u6a02\u89c0\u9396\u80fd\u6709\u6548\u6e1b\u5c11\u9396\u7684\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h3 id=\"%e6%a8%82%e8%a7%80%e9%8e%96%e7%9a%84%e7%a4%ba%e4%be%8b-ggMheeGOoB\">\u6a02\u89c0\u9396\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n-- \u5047\u8a2d\u6709\u4e00\u500b\u7248\u672c\u865f\u5b57\u6bb5 version\nUPDATE users SET balance = balance - 100, version = version + 1 \nWHERE id = 1 AND version = 1;\n<\/code><\/pre>\n<h2 id=\"%e6%a8%82%e8%a7%80%e9%8e%96%e8%88%87%e6%82%b2%e8%a7%80%e9%8e%96%e7%9a%84%e6%af%94%e8%bc%83-ggMheeGOoB\">\u6a02\u89c0\u9396\u8207\u60b2\u89c0\u9396\u7684\u6bd4\u8f03<\/h2>\n<p>\u6a02\u89c0\u9396\u548c\u60b2\u89c0\u9396\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u9078\u64c7\u54ea\u7a2e\u9396\u7b56\u7565\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u9700\u6c42\u3002<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u6a02\u89c0\u9396\u5728\u4f4e\u7af6\u722d\u74b0\u5883\u4e2d\u6027\u80fd\u66f4\u4f73\uff0c\u800c\u60b2\u89c0\u9396\u5728\u9ad8\u7af6\u722d\u74b0\u5883\u4e2d\u80fd\u66f4\u597d\u5730\u4fdd\u8b77\u6578\u64da\u3002<\/li>\n<li><strong>\u5be6\u73fe\u8907\u96dc\u5ea6\uff1a<\/strong>\u6a02\u89c0\u9396\u7684\u5be6\u73fe\u76f8\u5c0d\u7c21\u55ae\uff0c\u4f46\u9700\u8981\u8655\u7406\u91cd\u8a66\u908f\u8f2f\uff1b\u60b2\u89c0\u9396\u5247\u9700\u8981\u7ba1\u7406\u9396\u7684\u91cb\u653e\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u60b2\u89c0\u9396\u80fd\u66f4\u597d\u5730\u4fdd\u8b49\u6578\u64da\u4e00\u81f4\u6027\uff0c\u4f46\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\uff1b\u6a02\u89c0\u9396\u5247\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u5c0e\u81f4\u66f4\u65b0\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ggMheeGOoB\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u9078\u64c7\u6578\u64da\u5eab\u9396\u7b56\u7565\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u548c\u6578\u64da\u8a2a\u554f\u6a21\u5f0f\u4f86\u6c7a\u5b9a\u4f7f\u7528\u6a02\u89c0\u9396\u9084\u662f\u60b2\u89c0\u9396\u3002\u4e86\u89e3\u9019\u5169\u7a2e\u9396\u7684\u7279\u9ede\u548c\u9069\u7528\u5834\u666f\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\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\u4e0d\u540c\u696d\u52d9\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\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6578\u64da\u5eab\u9396\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u63a2\u7d22\u6a02\u89c0\u9396\u8207\u60b2\u89c0\u9396\u7684\u5340\u5225\u53ca\u5176\u5728\u6578\u64da\u4e00\u81f4\u6027\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-187296","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187296","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=187296"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187296\/revisions"}],"predecessor-version":[{"id":187297,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187296\/revisions\/187297"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}