{"id":5281,"date":"2021-10-05T10:24:55","date_gmt":"2021-10-05T02:24:55","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5281"},"modified":"2021-10-05T10:24:55","modified_gmt":"2021-10-05T02:24:55","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e5%a6%82%e4%bd%95%e8%af%81%e6%98%8e-mysql-%e4%b8%ad%e6%9c%89%e9%94%81","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5281","title":{"rendered":"\u9762\u8bd5\u5b98\uff1a\u5982\u4f55\u8bc1\u660e MySQL \u4e2d\u6709\u9501"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u7f18\u8d77<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u4f60\u60f3\u7ed9\u522b\u4eba\u8bf4\u660e\uff0cMysql \u91cc\u9762\u662f\u6709\u9501\u7684\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u591a\u6570\u4eba\uff0c\u90fd\u4f1a\u5f00\u4e24\u4e2a\u7a97\u53e3\uff0c\u5206\u522b\u8d77\u4e24\u4e2a\u4e8b\u52a1\uff0c\u7136\u540e update \u540c\u4e00\u6761\u8bb0\u5f55\uff0c\u5728\u53d1\u8d77\u7b2c\u4e8c\u6b21 update \u8bf7\u6c42\u65f6\uff0cblock\uff0c\u8fd9\u6837\u5c31\u8bf4\u660e\u8fd9\u884c\u8bb0\u5f55\u88ab\u9501\u4f4f\u4e86\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2021\/10\/sql-1.png\" alt=\"MySQL\u4e8b\u52a1\" \/><figcaption>MySQL\u4e8b\u52a1<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u7981\u9522<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u95ee\u9898\u6765\u4e86\uff0c\u8c8c\u4f3c\u53ea\u6709\u663e\u5f0f\u7684\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u624d\u4f1a\u6709\u9501\uff0c\u5982\u679c\u76f4\u63a5\u6267\u884c\u4e00\u6761 update \u8bed\u53e5\uff0c\u4f1a\u4e0d\u4f1a\u52a0\u9501\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bd4\u5982\u76f4\u63a5\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>update\u00a0t\u00a0set\u00a0c\u00a0=\u00a0c\u00a0+\u00a01\u00a0where\u00a0id\u00a0=\u00a01;\u00a0\u00a0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6761\u8bed\u53e5\uff0c\u524d\u9762\u4e0d\u52a0 begin\uff0c\u4e0d\u663e\u5f0f\u5f00\u542f\u4e8b\u52a1\uff0c\u90a3\u4e48 Mysql \u4f1a\u4e0d\u4f1a\u52a0\u9501\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f4\u89c9\u544a\u8bc9\u4f60\uff0c\u4f1a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u662f\u4e3a\u4ec0\u4e48\u8981\u52a0\u9501\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed9\u4f60\u4e94\u79d2\u949f\uff0c\u8bf4\u51fa\u7b54\u6848\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8230;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b66\u8fc7\u591a\u7ebf\u7a0b\u548c\u5e76\u53d1\u7684\u540c\u5b66\uff0c\u90fd\u77e5\u9053\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5982\u679c\u4e0d\u52a0\u9501\uff0c\u5c31\u4f1a\u6709\u7075\u5f02\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>i++;\u00a0\u00a0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f00\u542f\u5341\u4e2a\u7ebf\u7a0b\uff0c\u6267\u884c 1000 \u6b21\u8fd9\u6bb5\u4ee3\u7801\uff0c\u6700\u540e i \u6709\u6781\u5927\u53ef\u80fd\u6027\uff0c\u4f1a\u5c0f\u4e8e 1000\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u65f6\u5019\uff0c\u7528 Java \u7684\u5957\u8def\uff0c\u52a0\u9501\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>synchornize\u00a0{\ni++;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u95ee\u9898\u89e3\u51b3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u7406\uff0c\u5bf9\u4e8e\u6570\u636e\u5e93\uff0c\u4f60\u53ef\u4ee5\u7406\u89e3\u4e3a i\uff0c\u5c31\u662f\u6570\u636e\u5e93\u91cc\u7684\u4e00\u884c\u8bb0\u5f55\uff0ci++ \u8fd9\u6bb5\u4ee3\u7801\uff0c\u5c31\u662f\u4e00\u6761 update \u8bed\u53e5\uff0c\u800c\u591a\u7ebf\u7a0b\uff0c\u5bf9\u5e94\u7684\u5c31\u662f\u6570\u636e\u5e93\u91cc\u7684\u591a\u4e2a\u4e8b\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e2\u7136\u5bf9\u5185\u5b58\u4e2d i \u7684\u64cd\u4f5c\u9700\u8981\u52a0\u9501\uff0c\u4fdd\u8bc1\u5e76\u53d1\u5b89\u5168\uff0c\u90a3\u4e48\u5bf9\u6570\u636e\u5e93\u7684\u8bb0\u5f55\u8fdb\u884c\u4fee\u6539\uff0c\u4e5f\u5fc5\u987b\u52a0\u9501\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u9053\u7406\u5f88\u7b80\u5355\uff0c\u4f46\u662f\u5f88\u591a\u4eba\uff0c\u672a\u66fe\u60f3\u8fc7\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u91ca\u7136<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4ec0\u4e48\u5927\u5bb6\u90fd\u559c\u6b22\u7528\u7b2c\u4e00\u90e8\u5206\u91cc\u7684\u4f8b\u5b50\u6765\u6f14\u793a Mysql \u9501\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a\u5f00\u4e24\u4e2a\u4e8b\u52a1\uff0c\u4f1a block\uff0c\u591f\u76f4\u89c2\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u4e48\u95ee\u9898\u53c8\u6765\u4e86\uff0c\u4e3a\u4ec0\u4e48\u4f1a block\uff0c\u6216\u8005\u8bf4\uff0c\u4e3a\u4ec0\u4e48 Mysql \u4e00\u5b9a\u8981\u7b49\u5230 commit \u4e86\uff0c\u624d\u53bb\u91ca\u653e\u9501\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6267\u884c\u5b8c\u4e00\u6761 update \u8bed\u53e5\uff0c\u5c31\u628a\u9501\u91ca\u653e\u4e86\uff0c\u4e0d\u884c\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3e\u4e2a\u4f8b\u5b50\u5c31\u77e5\u9053 Mysql \u4e3a\u4ec0\u4e48\u8981\u8fd9\u4e48\u5e72\u4e86\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2021\/10\/sql-2.png\" alt=\"MySQL\u4e8b\u52a1\" \/><figcaption>MySQL\u4e8b\u52a1<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5f00\u59cb\u6570\u636e\u662f\uff1a<code>{id:1,c:1}<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u7740\u4e8b\u52a1 A \u901a\u8fc7 select .. for update\uff0c\u8fdb\u884c\u5f53\u524d\u8bfb\uff0c\u67e5\u5230\u4e86 c=1\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u7740\u5b83\u7ee7\u7eed\u53bb\u66f4\u65b0\uff0c\u628a c \u66f4\u65b0\u6210 3\uff0c\u5047\u8bbe\u8fd9\u65f6\u5019\uff0c\u4e8b\u52a1 A \u6267\u884c\u5b8c update \u8bed\u53e5\u540e\uff0c\u5c31\u628a\u9501\u91ca\u653e\u4e86\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u4e48\u5c31\u6709\u4e86\u7b2c 4 \u884c\uff0c\u4e8b\u52a1 B \u8fc7\u6765\u66f4\u65b0\uff0c\u628a c \u66f4\u65b0\u6210 4\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u679c\u5230\u4e86\u7b2c 5 \u884c\uff0c\u4e8b\u52a1 A \u53c8\u6765\u6267\u884c\u4e00\u6b21\u5f53\u524d\u8bfb\uff0c\u8bfb\u5230\u7684 c\uff0c\u7adf\u7136\u662f 4\uff0c\u660e\u660e\u6211\u4e0a\u4e00\u6b65\u624d\u628a c \u6539\u6210\u4e86 3&#8230;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1 A \u4e0d\u7531\u7684\u53d1\u51fa\u6012\u543c\uff1a\u6211\u4e3a\u4ec0\u4e48\u4f1a\u770b\u5230\u4e86\u6211\u4e0d\u8be5\u770b\uff0c\u6211\u4e5f\u4e0d\u60f3\u770b\u7684\u4e1c\u897f\uff1f\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1 B \u7684\u4fee\u6539\uff0c\u5c45\u7136\u8ba9\u4e8b\u52a1 A \u770b\u5230\u4e86\uff0c\u8fd9\u660e\u76ee\u5f20\u80c6\u7684\u8fdd\u53cd\u4e86\u4e8b\u52a1 ACID \u4e2d\u7684 I\uff0cIsolation\uff0c\u9694\u79bb\u6027\uff08\u4e8b\u52a1\u63d0\u4ea4\u4e4b\u524d\uff0c\u5bf9\u5176\u4ed6\u4e8b\u52a1\u4e0d\u53ef\u89c1\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u6240\u4ee5\uff0c\u7ed3\u8bba\uff1aMySQL \u4e3a\u4e86\u6ee1\u8db3\u4e8b\u52a1\u7684\u9694\u79bb\u6027\uff0c\u5fc5\u987b\u5728 commit \u624d\u91ca\u653e\u9501\u3002\u300d<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u81ea\u79c1\u7684\u57fa\u56e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u4eba\u8bf4\uff0c\u5982\u679c\u6211\u662f\u8bfb\u672a\u63d0\u4ea4\uff08 Read Uncommited \uff09\u7684\u9694\u79bb\u7ea7\u522b\uff0c\u53ef\u4ee5\u8bfb\u5230\u5bf9\u65b9\u672a\u63d0\u4ea4\u7684\u4e1c\u897f\uff0c\u662f\u4e0d\u662f\u5c31\u4e0d\u9700\u8981\u6ee1\u8db3\u9694\u79bb\u6027\uff0c\u662f\u4e0d\u662f\u5c31\u53ef\u4ee5\u4e0d\u7528\u7b49\u5230 commit \u624d\u91ca\u653e\u9501\u4e86\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u975e\u4e5f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd8\u662f\u4e3e\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2021\/10\/sql-3.png\" alt=\"\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1 A \u662f Read Committed\uff0c\u4e8b\u52a1 B \u662f Read Uncommitted\uff1b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1 B \u6267\u884c\u4e86\u4e00\u6761 update \u8bed\u53e5\uff0c\u628a c \u66f4\u65b0\u6210\u4e86 3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u4e8b\u52a1 B \u89c9\u5f97\u81ea\u5df1\u662f\u8bfb\u672a\u63d0\u4ea4\uff0c\u5c31\u628a\u9501\u91ca\u653e\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u8fd9\u65f6\u5019\u4e8b\u52a1 A \u8fc7\u6765\u6267\u884c\u5f53\u524d\u8bfb\uff0c\u8bfb\u5230\u4e86 c \u5c31\u662f 3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8b\u52a1 A \u8bfb\u5230\u4e86\u522b\u7684\u4e8b\u52a1\u6ca1\u6709\u63d0\u4ea4\u7684\u4e1c\u897f\uff0c\u800c\u4e8b\u52a1 A\uff0c\u8fd8\u8bf4\u81ea\u5df1\u662f\u8bfb\u5df2\u63d0\u4ea4\uff0c\u771f\u662f\u8bbd\u523a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u56e0\u5728\u4e8e\uff0c\u4e8b\u52a1 B \u975e\u5e38\u81ea\u79c1\uff0c\u4ed6\u89c9\u5f97\u81ea\u5df1\u662f\u8bfb\u672a\u63d0\u4ea4\uff0c\u5c31\u628a\u9501\u91ca\u653e\u4e86\uff0c\u7ed3\u679c\u8ba9\u522b\u4eba\u4e5f\u88ab\u201c\u8bfb\u672a\u63d0\u4ea4\u201d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u663e\u7136\uff0cMysql \u4e0d\u5141\u8bb8\u8fd9\u4e48\u81ea\u79c1\u7684\u884c\u4e3a\u5b58\u5728\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u7ed3\u8bba\uff1a\u5c31\u7b97\u4f60\u662f\u8bfb\u672a\u63d0\u4ea4\uff0c\u4f60\u4e5f\u8981\u7b49\u5230 commit \u4e86\u518d\u91ca\u653e\u9501\u3002\u300d<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u6d77\u7eb3\u767e\u5ddd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u90fd\u77e5\u9053 Mysql \u7684\u884c\u9501\uff0c\u5206\u4e3aX\u9501\u548cS\u9501\uff0c\u4e3a\u4ec0\u4e48 Mysql \u8981\u8fd9\u4e48\u505a\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u7b80\u5355\u5427\uff0c\u540c\u6837\u53ef\u4ee5\u7c7b\u6bd4 Java \u7684\u8bfb\u5199\u9501\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>\u275d<\/strong><\/p><p>It allows multiple threads to read a certain resource, but only one to write it, at a time.\u275e<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u5141\u8bb8\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bfb\uff0c\u4f46\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u5199\uff0c\u65e2\u652f\u6301\u5e76\u53d1\u63d0\u9ad8\u6027\u80fd\uff0c\u53c8\u4fdd\u8bc1\u4e86\u5e76\u53d1\u5b89\u5168\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u51e4\u51f0\u6d85\u78d0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u6765\u4e2a\u96be\u70b9\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u4e8b\u52a1 A \u9501\u4f4f\u4e86\u8868 T \u91cc\u7684\u4e00\u884c\u8bb0\u5f55\uff0c\u8fd9\u65f6\u5019\uff0c\u4f60\u6267\u884c\u4e86\u4e00\u4e2a DDL \u8bed\u53e5\uff0c\u60f3\u7ed9\u8fd9\u5f20\u8868\u52a0\u4e2a\u5b57\u6bb5\uff0c\u8fd9\u65f6\u5019\u9700\u8981\u9501\u8868\u5427\uff1f\u4f46\u662f\u7531\u4e8e\u8868\u91cc\u6709\u4e00\u884c\u8bb0\u5f55\u88ab\u9501\u4f4f\u4e86\uff0c\u6240\u4ee5\u8fd9\u65f6\u5019\u9501\u8868\u65f6\u4f1a block\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3 Mysql \u5728\u9501\u8868\u65f6\uff0c\u600e\u4e48\u5224\u65ad\u8868\u91cc\u6709\u6ca1\u6709\u8bb0\u5f55\u88ab\u9501\u4f4f\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7b80\u5355\u66b4\u529b\u7684\uff0c\u904d\u5386\u6574\u5f20\u8868\uff0c\u904d\u5386\u6bcf\u884c\u8bb0\u5f55\uff0c\u9047\u5230\u4e00\u4e2a\u9501\uff0c\u5c31\u8bf4\u660e\u8868\u91cc\u52a0\u9501\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\u505a\u53ef\u4ee5\uff0c\u4f46\u662f\u5f88\u50bb\uff0c\u6027\u80fd\u5f88\u5dee\uff0c\u9ad8\u6027\u80fd\u7684 Mysql\uff0c\u4e0d\u5141\u8bb8\u8fd9\u6837\u7684\u505a\u6cd5\u5b58\u5728\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mysql \u4f1a\u600e\u4e48\u505a\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u884c\u9501\u662f\u884c\u7ea7\u522b\u7684\uff0c\u7c92\u5ea6\u6bd4\u8f83\u5c0f\uff0c\u597d\uff0c\u90a3\u6211\u8981\u4f60\u5728\u62ff\u884c\u9501\u4e4b\u524d\uff0c\u5fc5\u987b\u5148\u62ff\u4e00\u4e2a\u5047\u7684\u8868\u9501\uff0c\u8868\u793a\u4f60\u60f3\u53bb\u9501\u4f4f\u8868\u91cc\u7684\u67d0\u4e00\u884c\u6216\u8005\u591a\u884c\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\uff0cMysql \u5728\u5224\u65ad\u8868\u91cc\u6709\u6ca1\u6709\u8bb0\u5f55\u88ab\u9501\u5b9a\uff0c\u5c31\u4e0d\u9700\u8981\u904d\u5386\u6574\u5f20\u8868\u4e86\uff0c\u5b83\u53ea\u9700\u8981\u770b\u770b\uff0c\u6709\u6ca1\u6709\u4eba\u62ff\u4e86\u8fd9\u4e2a\u5047\u7684\u8868\u9501\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u8fd9\u4e2a\u5047\u7684\u8868\u9501\uff0c\u5c31\u662f\u6211\u4eec\u5e38\u8bf4\u7684\uff0c\u610f\u5411\u9501\u3002\u300d<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>\u275d<\/strong><\/p><p>Intention locks are table-level locks that indicate which type of lock (shared or exclusive) a transaction requires later for a row in a table\u275e<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f88\u591a\u4eba\u77e5\u9053\u610f\u5411\u9501\u662f\u4ec0\u4e48\uff0c\u4f46\u662f\u5374\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u9700\u8981\u4e00\u4e2a\u7c92\u5ea6\u6bd4\u8f83\u5927\u7684\u9501\uff0c\u4e0d\u77e5\u9053\u5b83\u4e3a\u4f55\u800c\u6765\uff0c\u4e0d\u77e5\u9053 Mysql \u4e3a\u4f55\u8981\u8bbe\u8ba1\u4e2a\u610f\u5411\u9501\u51fa\u6765\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u77e5\u5176\u7136\uff0c\u77e5\u5176\u6240\u4ee5\u7136\u3002\u300d<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u53c2\u8003\u6587\u732e<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>InnoDB Locking\uff1a<code>https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/innodb-locking.html<\/code><\/li><li>ReadWriteLock\uff1a<code>http:\/\/tutorials.jenkov.com\/java-util-concurrent\/readwritelock.html<\/code><\/li><li>\u300aMysql\u6280\u672f\u5185\u5e55\u300b<\/li><\/ul>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=5281\">\u9762\u8bd5\u5b98\uff1a\u5982\u4f55\u8bc1\u660e MySQL \u4e2d\u6709\u9501<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u7f18\u8d77 \u5047\u8bbe\u4f60\u60f3\u7ed9\u522b\u4eba\u8bf4\u660e\uff0cMysql \u91cc\u9762\u662f\u6709\u9501\u7684\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\uff1f \u5927\u591a\u6570\u4eba\uff0c\u90fd\u4f1a\u5f00\u4e24\u4e2a\u7a97\u53e3\uff0c\u5206\u522b\u8d77\u4e24\u4e2a\u4e8b\u52a1 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[83,392,391,393,447],"class_list":["post-5281","post","type-post","status-publish","format-standard","hentry","category-sql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5281"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5281\/revisions"}],"predecessor-version":[{"id":5282,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5281\/revisions\/5282"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}