{"id":173313,"date":"2024-11-07T16:59:22","date_gmt":"2024-11-07T08:59:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173313\/"},"modified":"2024-11-07T16:59:23","modified_gmt":"2024-11-07T08:59:23","slug":"%e5%a6%82%e4%bd%95%e5%b0%8dmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e9%80%b2%e8%a1%8c%e9%8e%96%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173313\/","title":{"rendered":"\u5982\u4f55\u5c0dMySQL\u6578\u64da\u5eab\u8868\u9032\u884c\u9396\u5b9a"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%b0%8dmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e9%80%b2%e8%a1%8c%e9%8e%96%e5%ae%9a-PhZuOAFuGq\">\u5982\u4f55\u5c0dMySQL\u6578\u64da\u5eab\u8868\u9032\u884c\u9396\u5b9a<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u9396\u5b9a\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7279\u5225\u662f\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5c0dMySQL\u6578\u64da\u5eab\u8868\u9032\u884c\u9396\u5b9a\uff0c\u4e26\u4ecb\u7d39\u4e0d\u540c\u7684\u9396\u5b9a\u985e\u578b\u53ca\u5176\u4f7f\u7528\u60c5\u5883\u3002<\/p>\n<h2 id=\"%e9%8e%96%e5%ae%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-PhZuOAFuGq\">\u9396\u5b9a\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u9396\u5b9a\u662f\u6307\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u70ba\u4e86\u9632\u6b62\u5176\u4ed6\u7528\u6236\u540c\u6642\u8a2a\u554f\u6216\u4fee\u6539\u6578\u64da\u800c\u5c0d\u7279\u5b9a\u6578\u64da\u9032\u884c\u7684\u63a7\u5236\u3002\u9396\u5b9a\u53ef\u4ee5\u5206\u70ba\u5169\u7a2e\u4e3b\u8981\u985e\u578b\uff1a\u884c\u9396\u548c\u8868\u9396\u3002<\/p>\n<ul>\n<li><strong>\u884c\u9396\uff1a<\/strong>\u884c\u9396\u5141\u8a31\u591a\u500b\u7528\u6236\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8868\u4e2d\u7684\u4e0d\u540c\u8a18\u9304\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u4e26\u767c\u6027\u3002<\/li>\n<li><strong>\u8868\u9396\uff1a<\/strong>\u8868\u9396\u5247\u6703\u9396\u5b9a\u6574\u500b\u8868\uff0c\u9019\u6a23\u5728\u9396\u5b9a\u671f\u9593\uff0c\u5176\u4ed6\u7528\u6236\u7121\u6cd5\u5c0d\u8a72\u8868\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u4f46\u6703\u964d\u4f4e\u4e26\u767c\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e9%8e%96%e5%ae%9a%e9%a1%9e%e5%9e%8b-PhZuOAFuGq\">MySQL\u4e2d\u7684\u9396\u5b9a\u985e\u578b<\/h2>\n<p>MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<h3 id=\"1-%e8%87%aa%e5%8b%95%e9%8e%96%e5%ae%9a-PhZuOAFuGq\">1. \u81ea\u52d5\u9396\u5b9a<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u7576\u4e00\u500b\u4e8b\u52d9\u958b\u59cb\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u5c0d\u6d89\u53ca\u7684\u6578\u64da\u884c\u9032\u884c\u9396\u5b9a\u3002\u9019\u7a2e\u9396\u5b9a\u901a\u5e38\u662f\u884c\u9396\uff0c\u4e26\u4e14\u5728\u4e8b\u52d9\u7d50\u675f\u6642\u81ea\u52d5\u91cb\u653e\u3002<\/p>\n<h3 id=\"2-%e6%98%8e%e7%a2%ba%e9%8e%96%e5%ae%9a-PhZuOAFuGq\">2. \u660e\u78ba\u9396\u5b9a<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u660e\u78ba\u5730\u5c0d\u6578\u64da\u9032\u884c\u9396\u5b9a\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9396\u5b9a\u8a9e\u53e5\uff1a<\/p>\n<pre><code>-- \u9396\u5b9a\u6574\u500b\u8868\nLOCK TABLES table_name WRITE;\n\n-- \u9396\u5b9a\u7279\u5b9a\u884c\nSELECT * FROM table_name WHERE condition FOR UPDATE;\n<\/code><\/pre>\n<h3 id=\"3-%e5%85%b1%e4%ba%ab%e9%8e%96%e5%92%8c%e6%8e%92%e4%bb%96%e9%8e%96-PhZuOAFuGq\">3. \u5171\u4eab\u9396\u548c\u6392\u4ed6\u9396<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u9396\u5b9a\u9084\u53ef\u4ee5\u5206\u70ba\u5171\u4eab\u9396\u548c\u6392\u4ed6\u9396\uff1a<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u9396\uff1a<\/strong>\u5141\u8a31\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u6578\u64da\uff0c\u4f46\u4e0d\u5141\u8a31\u4fee\u6539\u3002<\/li>\n<li><strong>\u6392\u4ed6\u9396\uff1a<\/strong>\u53ea\u5141\u8a31\u4e00\u500b\u4e8b\u52d9\u5c0d\u6578\u64da\u9032\u884c\u8b80\u53d6\u548c\u4fee\u6539\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u8a2a\u554f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e9%8e%96%e5%ae%9a-PhZuOAFuGq\">\u5982\u4f55\u4f7f\u7528\u9396\u5b9a<\/h2>\n<p>\u4f7f\u7528\u9396\u5b9a\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u958b\u59cb\u4e00\u500b\u4e8b\u52d9\u3002<\/li>\n<li>\u6839\u64da\u9700\u8981\u5c0d\u8868\u6216\u884c\u9032\u884c\u9396\u5b9a\u3002<\/li>\n<li>\u57f7\u884c\u6240\u9700\u7684\u6578\u64da\u64cd\u4f5c\uff08\u5982\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\uff09\u3002<\/li>\n<li>\u63d0\u4ea4\u6216\u56de\u6efe\u4e8b\u52d9\uff0c\u91cb\u653e\u9396\u5b9a\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b-PhZuOAFuGq\">\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u9396\u5b9a\uff1a<\/p>\n<pre><code>START TRANSACTION;\n\n-- \u9396\u5b9a\u7279\u5b9a\u884c\nSELECT * FROM users WHERE id = 1 FOR UPDATE;\n\n-- \u66f4\u65b0\u64cd\u4f5c\nUPDATE users SET balance = balance - 100 WHERE id = 1;\n\nCOMMIT;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u958b\u59cb\u4e00\u500b\u4e8b\u52d9\uff0c\u7136\u5f8c\u5c0d\u7279\u5b9a\u7528\u6236\u7684\u884c\u9032\u884c\u9396\u5b9a\uff0c\u63a5\u8457\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\uff0c\u6700\u5f8c\u63d0\u4ea4\u4e8b\u52d9\u4ee5\u91cb\u653e\u9396\u5b9a\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-PhZuOAFuGq\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u9396\u5b9a\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u904e\u5ea6\u4f7f\u7528\u9396\u5b9a\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\uff0c\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u3002<\/li>\n<li>\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9396\u5b9a\u985e\u578b\uff0c\u4ee5\u5e73\u8861\u6578\u64da\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u6027\u80fd\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u6578\u64da\u5eab\u7684\u9396\u5b9a\u7b56\u7565\uff0c\u4ee5\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PhZuOAFuGq\">\u7e3d\u7d50<\/h2>\n<p>\u5c0dMySQL\u6578\u64da\u5eab\u8868\u9032\u884c\u9396\u5b9a\u662f\u4e00\u500b\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u4e86\u89e3\u4e0d\u540c\u7684\u9396\u5b9a\u985e\u578b\u53ca\u5176\u4f7f\u7528\u60c5\u5883\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u61c9\u7528\u6642\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5c0dMySQL\u6578\u64da\u5eab\u8868\u9032\u884c\u9396\u5b9a\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u4e26\u767c\u885d\u7a81\uff0c\u63d0\u5347\u6578\u64da\u64cd\u4f5c\u7684\u5b89\u5168\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-173313","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173313","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=173313"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173313\/revisions"}],"predecessor-version":[{"id":173314,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173313\/revisions\/173314"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}