{"id":5767,"date":"2024-11-14T11:58:50","date_gmt":"2024-11-14T03:58:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5767\/"},"modified":"2024-11-14T11:58:50","modified_gmt":"2024-11-14T03:58:50","slug":"mysql%e9%94%81%e6%9c%ba%e5%88%b6%e6%98%af%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5767\/","title":{"rendered":"mysql\u9501\u673a\u5236\u662f\u4ec0\u4e48\u610f\u601d"},"content":{"rendered":"<blockquote><p>\n  mysql \u7684\u9501\u673a\u5236\u901a\u8fc7\u9632\u6b62\u5e76\u53d1\u4e8b\u52a1\u540c\u65f6\u5199\u5165\u6216\u66f4\u65b0\u76f8\u540c\u6570\u636e\uff0c\u6765\u786e\u4fdd\u6570\u636e\u5e93\u7684 acid \u5c5e\u6027\u3002\u5b83\u63d0\u4f9b\u4e86\u8868\u9501\uff08\u4ee5\u6574\u4e2a\u8868\u4e3a\u7c92\u5ea6\uff09\u548c\u884c\u9501\uff08\u4ee5\u884c\u6216\u4e00\u7ec4\u884c\u4e3a\u7c92\u5ea6\uff09\u3002\u9501\u7684\u7ea7\u522b\u5305\u62ec\u8bfb\u9501\u3001\u5199\u9501\u3001\u610f\u5411\u5171\u4eab\u9501\u548c\u610f\u5411\u6392\u4ed6\u9501\u3002\u4e8b\u52a1\u8bf7\u6c42\u9501\u65f6\uff0cdbms \u4f1a\u8fdb\u884c\u51b2\u7a81\u68c0\u6d4b\u5e76\u6388\u4e88\u6216\u963b\u585e\u9501\u3002\u4e8b\u52a1\u5b8c\u6210\u540e\u91ca\u653e\u9501\uff0c\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u6570\u636e\u3002\u9501\u7684\u7c92\u5ea6\u5f71\u54cd\u5e76\u53d1\u6027\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u7a0b\u5e8f\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u7c92\u5ea6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/02\/2024060201032936823.jpg\" class=\"aligncenter\" title=\"mysql\u9501\u673a\u5236\u662f\u4ec0\u4e48\u610f\u601d\u63d2\u56fe\" alt=\"mysql\u9501\u673a\u5236\u662f\u4ec0\u4e48\u610f\u601d\u63d2\u56fe\" \/><\/p>\n<p><strong>\u4ec0\u4e48\u662f MySQL \u9501\u673a\u5236\uff1f<\/strong><\/p>\n<p>MySQL \u7684\u9501\u673a\u5236\u662f\u4e00\u79cd\u5e76\u53d1\u63a7\u5236\u673a\u5236\uff0c\u7528\u4e8e\u7ba1\u7406\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\u6570\u636e\u5e93\u65f6\u7684\u6570\u636e\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5b83\u901a\u8fc7\u9632\u6b62\u5176\u4ed6\u4e8b\u52a1\u5728\u5f53\u524d\u4e8b\u52a1\u64cd\u4f5c\u6570\u636e\u65f6\u5199\u5165\u6216\u66f4\u65b0\u76f8\u540c\u6570\u636e\uff0c\u6765\u786e\u4fdd\u6570\u636e\u5e93\u7684\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u548c\u6301\u4e45\u6027 (ACID) \u5c5e\u6027\u3002<\/p>\n<p><strong>\u9501\u673a\u5236\u7c7b\u578b<\/strong><\/p>\n<p>MySQL \u63d0\u4f9b\u4e86\u4e24\u79cd\u4e3b\u8981\u7684\u9501\u673a\u5236\uff1a<\/p>\n<ul>\n<li> <strong>\u8868\u9501 (Table Locks)\uff1a<\/strong>\u4ee5\u6574\u4e2a\u8868\u4e3a\u7c92\u5ea6\uff0c\u9501\u4f4f\u6574\u4e2a\u8868\u4e2d\u7684\u6240\u6709\u884c\uff0c\u4ece\u800c\u6700\u5927\u7a0b\u5ea6\u5730\u9632\u6b62\u5e76\u53d1\u5199\u5165\u6216\u66f4\u65b0\u3002<\/li>\n<li> <strong>\u884c\u9501 (Row Locks)\uff1a<\/strong>\u4ee5\u5355\u4e2a\u884c\u6216\u4e00\u7ec4\u884c\u4e3a\u7c92\u5ea6\uff0c\u53ea\u9501\u4f4f\u9700\u8981\u64cd\u4f5c\u7684\u884c\uff0c\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u672a\u9501\u5b9a\u7684\u884c\u3002<\/li>\n<\/ul>\n<p><strong>\u9501\u7684\u7ea7\u522b<\/strong><\/p>\n<p>MySQL \u652f\u6301\u4ee5\u4e0b\u9501\u7ea7\u522b\uff0c\u53ef\u7528\u4e8e\u66f4\u7cbe\u7ec6\u5730\u63a7\u5236\u5e76\u53d1\u8bbf\u95ee\uff1a<\/p>\n<ul>\n<li> <strong>\u8bfb\u9501 (READ)\uff1a<\/strong>\u5141\u8bb8\u4e8b\u52a1\u8bfb\u53d6\u9501\u5b9a\u7684\u6570\u636e\uff0c\u4f46\u7981\u6b62\u5199\u5165\u6216\u66f4\u65b0\u3002<\/li>\n<li> <strong>\u5199\u9501 (WRITE)\uff1a<\/strong>\u5141\u8bb8\u4e8b\u52a1\u8bfb\u53d6\u548c\u66f4\u65b0\u9501\u5b9a\u7684\u6570\u636e\uff0c\u4f46\u7981\u6b62\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u3002<\/li>\n<li> <strong>\u610f\u5411\u5171\u4eab\u9501 (IS)\uff1a<\/strong>\u8868\u793a\u4e8b\u52a1\u6253\u7b97\u5bf9\u8868\u8fdb\u884c\u5171\u4eab\u9501\u6216\u8bfb\u9501\u64cd\u4f5c\u3002<\/li>\n<li> <strong>\u610f\u5411\u6392\u4ed6\u9501 (IX)\uff1a<\/strong>\u8868\u793a\u4e8b\u52a1\u6253\u7b97\u5bf9\u8868\u8fdb\u884c\u6392\u4ed6\u9501\u6216\u5199\u9501\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p><strong>\u9501\u7684\u83b7\u53d6<\/strong><\/p>\n<p>\u5f53\u4e8b\u52a1\u9700\u8981\u8bbf\u95ee\u6570\u636e\u65f6\uff0c\u5b83\u5c06\u8bf7\u6c42\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf (DBMS) \u5206\u914d\u4e00\u4e2a\u9501\u3002\u5982\u679c\u6240\u8bf7\u6c42\u7684\u9501\u4e0e\u73b0\u6709\u9501\u4e0d\u51b2\u7a81\uff0c\u5219 DBMS \u4f1a\u6388\u4e88\u9501\u3002\u5426\u5219\uff0cDBMS \u5c06\u963b\u585e\u4e8b\u52a1\uff0c\u76f4\u5230\u9501\u53ef\u4ee5\u88ab\u6388\u4e88\u4e3a\u6b62\u3002<\/p>\n<p><strong>\u9501\u7684\u91ca\u653e<\/strong><\/p>\n<p>\u4e8b\u52a1\u5b8c\u6210\u540e\uff0c\u5b83\u5c06\u91ca\u653e\u6240\u6709\u6301\u6709\u7684\u9501\u3002\u8fd9\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u5148\u524d\u9501\u5b9a\u7684\u6570\u636e\u3002\u5f53\u6240\u6709\u9501\u90fd\u5df2\u91ca\u653e\u65f6\uff0c\u6570\u636e\u5e93\u5c06\u8fdb\u5165\u672a\u9501\u5b9a\u72b6\u6001\u3002<\/p>\n<p><strong>\u9501\u7684\u7c92\u5ea6<\/strong><\/p>\n<p>\u9501\u7684\u7c92\u5ea6\u662f\u9501\u8986\u76d6\u7684\u6570\u636e\u91cf\u3002\u7c92\u5ea6\u8f83\u9ad8\u7684\u9501\uff08\u4f8b\u5982\u8868\u9501\uff09\u4f1a\u9650\u5236\u5e76\u53d1\u6027\uff0c\u800c\u7c92\u5ea6\u8f83\u4f4e\u7684\u9501\uff08\u4f8b\u5982\u884c\u9501\uff09\u5219\u5141\u8bb8\u66f4\u9ad8\u7684\u5e76\u53d1\u6027\u3002\u9009\u62e9\u9002\u5f53\u7684\u9501\u7c92\u5ea6\u5bf9\u4e8e\u5e73\u8861\u5e76\u53d1\u6027\u548c\u4e00\u81f4\u6027\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u9501\u673a\u5236\u662f\u4ec0\u4e48\u610f\u601d\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>mysql 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MySQL \u9501\u673a\u5236\uff1f MySQL \u7684\u9501\u673a\u5236\u662f\u4e00\u79cd\u5e76\u53d1\u63a7\u5236\u673a\u5236\uff0c\u7528\u4e8e\u7ba1\u7406\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\u6570\u636e\u5e93\u65f6\u7684\u6570\u636e\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5b83\u901a\u8fc7\u9632\u6b62\u5176\u4ed6\u4e8b\u52a1\u5728\u5f53\u524d\u4e8b\u52a1\u64cd\u4f5c\u6570\u636e\u65f6\u5199\u5165\u6216\u66f4\u65b0\u76f8\u540c\u6570\u636e\uff0c\u6765\u786e\u4fdd\u6570\u636e\u5e93\u7684\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u548c\u6301\u4e45\u6027 (ACID) \u5c5e\u6027\u3002 \u9501\u673a\u5236\u7c7b\u578b MySQL \u63d0\u4f9b\u4e86\u4e24\u79cd\u4e3b\u8981\u7684\u9501\u673a\u5236\uff1a \u8868\u9501 (Table Locks)\uff1a\u4ee5\u6574\u4e2a\u8868\u4e3a\u7c92\u5ea6\uff0c\u9501\u4f4f\u6574\u4e2a\u8868\u4e2d\u7684\u6240\u6709\u884c\uff0c\u4ece\u800c\u6700\u5927\u7a0b\u5ea6\u5730\u9632\u6b62\u5e76\u53d1\u5199\u5165\u6216\u66f4\u65b0\u3002 \u884c\u9501 (Row Locks)\uff1a\u4ee5\u5355\u4e2a\u884c\u6216\u4e00\u7ec4\u884c\u4e3a\u7c92\u5ea6\uff0c\u53ea\u9501\u4f4f\u9700\u8981\u64cd\u4f5c\u7684\u884c\uff0c\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u672a\u9501\u5b9a\u7684\u884c\u3002 \u9501\u7684\u7ea7\u522b MySQL \u652f\u6301\u4ee5\u4e0b\u9501\u7ea7\u522b\uff0c\u53ef\u7528\u4e8e\u66f4\u7cbe\u7ec6\u5730\u63a7\u5236\u5e76\u53d1\u8bbf\u95ee\uff1a \u8bfb\u9501 (READ)\uff1a\u5141\u8bb8\u4e8b\u52a1\u8bfb\u53d6\u9501\u5b9a\u7684\u6570\u636e\uff0c\u4f46\u7981\u6b62\u5199\u5165\u6216\u66f4\u65b0\u3002 \u5199\u9501 (WRITE)\uff1a\u5141\u8bb8\u4e8b\u52a1\u8bfb\u53d6\u548c\u66f4\u65b0\u9501\u5b9a\u7684\u6570\u636e\uff0c\u4f46\u7981\u6b62\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u3002 \u610f\u5411\u5171\u4eab\u9501 (IS)\uff1a\u8868\u793a\u4e8b\u52a1\u6253\u7b97\u5bf9\u8868\u8fdb\u884c\u5171\u4eab\u9501\u6216\u8bfb\u9501\u64cd\u4f5c\u3002 \u610f\u5411\u6392\u4ed6\u9501 (IX)\uff1a\u8868\u793a\u4e8b\u52a1\u6253\u7b97\u5bf9\u8868\u8fdb\u884c\u6392\u4ed6\u9501\u6216\u5199\u9501\u64cd\u4f5c\u3002 \u9501\u7684\u83b7\u53d6 \u5f53\u4e8b\u52a1\u9700\u8981\u8bbf\u95ee\u6570\u636e\u65f6\uff0c\u5b83\u5c06\u8bf7\u6c42\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf (DBMS) \u5206\u914d\u4e00\u4e2a\u9501\u3002\u5982\u679c\u6240\u8bf7\u6c42\u7684\u9501\u4e0e\u73b0\u6709\u9501\u4e0d\u51b2\u7a81\uff0c\u5219 DBMS \u4f1a\u6388\u4e88\u9501\u3002\u5426\u5219\uff0cDBMS \u5c06\u963b\u585e\u4e8b\u52a1\uff0c\u76f4\u5230\u9501\u53ef\u4ee5\u88ab\u6388\u4e88\u4e3a\u6b62\u3002 \u9501\u7684\u91ca\u653e \u4e8b\u52a1\u5b8c\u6210\u540e\uff0c\u5b83\u5c06\u91ca\u653e\u6240\u6709\u6301\u6709\u7684\u9501\u3002\u8fd9\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bbf\u95ee\u5148\u524d\u9501\u5b9a\u7684\u6570\u636e\u3002\u5f53\u6240\u6709\u9501\u90fd\u5df2\u91ca\u653e\u65f6\uff0c\u6570\u636e\u5e93\u5c06\u8fdb\u5165\u672a\u9501\u5b9a\u72b6\u6001\u3002 \u9501\u7684\u7c92\u5ea6 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