{"id":76028,"date":"2024-10-16T03:15:19","date_gmt":"2024-10-15T19:15:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76028\/"},"modified":"2024-10-16T03:15:19","modified_gmt":"2024-10-15T19:15:19","slug":"mysql-%e5%8a%a0%e9%8e%96%e8%99%95%e7%90%86%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76028\/","title":{"rendered":"MySQL \u52a0\u9396\u8655\u7406\u5206\u6790"},"content":{"rendered":"<h1 id=\"mysql-%e5%8a%a0%e9%8e%96%e8%99%95%e7%90%86%e5%88%86%e6%9e%90-ymbogXeEEL\">MySQL \u52a0\u9396\u8655\u7406\u5206\u6790<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\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\u958b\u6e90\u8cc7\u6599\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u5b9a\u6a5f\u5236\u4f86\u78ba\u4fdd\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MySQL \u7684\u52a0\u9396\u8655\u7406\uff0c\u5305\u62ec\u9396\u7684\u985e\u578b\u3001\u4f7f\u7528\u5834\u666f\u53ca\u5176\u512a\u7f3a\u9ede\u3002<\/p>\n<h2 id=\"%e9%8e%96%e7%9a%84%e9%a1%9e%e5%9e%8b-ymbogXeEEL\">\u9396\u7684\u985e\u578b<\/h2>\n<p>MySQL \u4e2d\u7684\u9396\u4e3b\u8981\u5206\u70ba\u5169\u5927\u985e\uff1a\u884c\u9396\u548c\u8868\u9396\u3002<\/p>\n<h3 id=\"%e8%a1%8c%e9%8e%96-ymbogXeEEL\">\u884c\u9396<\/h3>\n<p>\u884c\u9396\u662f\u6307\u5728\u8cc7\u6599\u8868\u4e2d\u7684\u67d0\u4e00\u884c\u4e0a\u52a0\u9396\uff0c\u9019\u6a23\u5176\u4ed6\u4e8b\u52d9\u53ef\u4ee5\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8868\u4e2d\u7684\u5176\u4ed6\u884c\u3002\u884c\u9396\u7684\u512a\u9ede\u5728\u65bc\u5b83\u80fd\u5920\u63d0\u9ad8\u4e26\u767c\u6027\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002MySQL \u4f7f\u7528 InnoDB \u5b58\u5132\u5f15\u64ce\u6642\uff0c\u884c\u9396\u662f\u901a\u904e MVCC\uff08\u591a\u7248\u672c\u4e26\u767c\u63a7\u5236\uff09\u4f86\u5be6\u73fe\u7684\u3002<\/p>\n<pre><code>-- \u793a\u4f8b\uff1a\u4f7f\u7528\u884c\u9396\nSTART TRANSACTION;\nSELECT * FROM users WHERE id = 1 FOR UPDATE;\n-- \u9032\u884c\u5176\u4ed6\u64cd\u4f5c\nCOMMIT;<\/code><\/pre>\n<h3 id=\"%e8%a1%a8%e9%8e%96-ymbogXeEEL\">\u8868\u9396<\/h3>\n<p>\u8868\u9396\u662f\u6307\u5728\u6574\u500b\u8cc7\u6599\u8868\u4e0a\u52a0\u9396\uff0c\u9019\u6a23\u5176\u4ed6\u4e8b\u52d9\u5728\u9396\u5b9a\u671f\u9593\u7121\u6cd5\u8a2a\u554f\u8a72\u8868\u3002\u8868\u9396\u7684\u512a\u9ede\u662f\u5be6\u73fe\u7c21\u55ae\uff0c\u9069\u5408\u65bc\u8b80\u53d6\u64cd\u4f5c\u8f03\u591a\u7684\u5834\u666f\uff0c\u4f46\u7f3a\u9ede\u662f\u6703\u964d\u4f4e\u4e26\u767c\u6027\uff0c\u56e0\u70ba\u5176\u4ed6\u4e8b\u52d9\u5fc5\u9808\u7b49\u5f85\u9396\u91cb\u653e\u3002<\/p>\n<pre><code>-- \u793a\u4f8b\uff1a\u4f7f\u7528\u8868\u9396\nLOCK TABLES users WRITE;\n-- \u9032\u884c\u5176\u4ed6\u64cd\u4f5c\nUNLOCK TABLES;<\/code><\/pre>\n<h2 id=\"%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-ymbogXeEEL\">\u9396\u7684\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u5728\u9078\u64c7\u4f7f\u7528\u884c\u9396\u6216\u8868\u9396\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u4f86\u6c7a\u5b9a\u3002<\/p>\n<ul>\n<li><strong>\u884c\u9396\u9069\u7528\u65bc\uff1a<\/strong>\u9ad8\u4e26\u767c\u7684\u4ea4\u6613\u7cfb\u7d71\uff0c\u4f8b\u5982\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u5141\u8a31\u591a\u500b\u7528\u6236\u540c\u6642\u9032\u884c\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u8868\u9396\u9069\u7528\u65bc\uff1a<\/strong>\u8b80\u53d6\u64cd\u4f5c\u8f03\u591a\u4e14\u5beb\u5165\u64cd\u4f5c\u8f03\u5c11\u7684\u7cfb\u7d71\uff0c\u4f8b\u5982\u5831\u8868\u751f\u6210\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u7c21\u5316\u9396\u7684\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-ymbogXeEEL\">\u9396\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e8%a1%8c%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-ymbogXeEEL\">\u884c\u9396\u7684\u512a\u7f3a\u9ede<\/h3>\n<ul>\n<li><strong>\u512a\u9ede\uff1a<\/strong>\u63d0\u9ad8\u4e86\u4e26\u767c\u6027\uff0c\u6e1b\u5c11\u4e86\u9396\u7af6\u722d\u3002<\/li>\n<li><strong>\u7f3a\u9ede\uff1a<\/strong>\u5be6\u73fe\u8f03\u70ba\u8907\u96dc\uff0c\u53ef\u80fd\u5c0e\u81f4\u6b7b\u9396\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a1%a8%e9%8e%96%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-ymbogXeEEL\">\u8868\u9396\u7684\u512a\u7f3a\u9ede<\/h3>\n<ul>\n<li><strong>\u512a\u9ede\uff1a<\/strong>\u5be6\u73fe\u7c21\u55ae\uff0c\u9069\u5408\u65bc\u7c21\u55ae\u7684\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u7f3a\u9ede\uff1a<\/strong>\u964d\u4f4e\u4e86\u4e26\u767c\u6027\uff0c\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%ad%bb%e9%8e%96%e8%99%95%e7%90%86-ymbogXeEEL\">\u6b7b\u9396\u8655\u7406<\/h2>\n<p>\u5728\u4f7f\u7528\u884c\u9396\u6642\uff0c\u6b7b\u9396\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u3002\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b7b\u9396\u3002MySQL \u6703\u81ea\u52d5\u6aa2\u6e2c\u6b7b\u9396\u4e26\u9078\u64c7\u4e00\u500b\u4e8b\u52d9\u56de\u6efe\uff0c\u4ee5\u91cb\u653e\u9396\u8cc7\u6e90\u3002<\/p>\n<pre><code>-- \u793a\u4f8b\uff1a\u6aa2\u67e5\u6b7b\u9396\nSHOW ENGINE INNODB STATUS;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-ymbogXeEEL\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u7684\u52a0\u9396\u8655\u7406\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002\u9078\u64c7\u5408\u9069\u7684\u9396\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u884c\u9396\u901a\u5e38\u662f\u66f4\u597d\u7684\u9078\u64c7\uff0c\u800c\u5728\u8b80\u53d6\u64cd\u4f5c\u8f03\u591a\u7684\u5834\u666f\u4e2d\uff0c\u8868\u9396\u5247\u53ef\u80fd\u66f4\u70ba\u5408\u9069\u3002\u4e86\u89e3\u9396\u7684\u7279\u6027\u53ca\u5176\u4f7f\u7528\u5834\u666f\uff0c\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3 MySQL \u7684\u52a0\u9396\u8655\u7406\u53ca\u5176\u5728 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u74b0\u5883\u4e2d\u7684\u61c9\u7528\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5206\u6790 MySQL \u52a0\u9396\u8655\u7406\uff0c\u63a2\u8a0e\u9396\u7684\u985e\u578b\u3001\u6027\u80fd\u5f71\u97ff\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6548\u80fd\u8207\u7a69\u5b9a\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-76028","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76028","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=76028"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76028\/revisions"}],"predecessor-version":[{"id":76029,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76028\/revisions\/76029"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}