{"id":199629,"date":"2025-05-06T09:56:45","date_gmt":"2025-05-06T01:56:45","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199629\/"},"modified":"2025-05-06T09:56:45","modified_gmt":"2025-05-06T01:56:45","slug":"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9%ef%bc%9amysql-%e9%94%81%e7%9a%84%e6%ad%a3%e7%a1%ae%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199629\/","title":{"rendered":"\u6ce8\u610f\u4e8b\u9879\uff1aMySQL \u9501\u7684\u6b63\u786e\u4f7f\u7528"},"content":{"rendered":"

<\/b> <\/p>\n

\u6ce8\u610f\u4e8b\u9879\uff1aMySQL \u9501\u7684\u6b63\u786e\u4f7f\u7528<\/h1>\n

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u5982\u679c\u4f60\u5bf9\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n

MySQL \u9501\u7684\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/p>\n

\u9501\u662f\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7528\u4e8e\u4fdd\u62a4\u6570\u636e\u5b8c\u6574\u6027\u548c\u5e76\u53d1\u63a7\u5236\u7684\u91cd\u8981\u673a\u5236\u3002\u5728MySQL\u4e2d\uff0c\u9501\u7684\u4f7f\u7528\u662f\u975e\u5e38\u5e38\u89c1\u7684\uff0c\u4f46\u662f\u5982\u679c\u4e0d\u6ce8\u610f\u4e00\u4e9b\u7ec6\u8282\uff0c\u5c31\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u6216\u8005\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u53d1\u751f\u3002\u672c\u6587\u5c06\u4ecb\u7ecdMySQL\u9501\u7684\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u4e0d\u540c\u7c7b\u578b\u7684\u9501<\/p>\n

MySQL\u4e2d\u6709\u591a\u79cd\u7c7b\u578b\u7684\u9501\uff0c\u5305\u62ec\u8868\u7ea7\u9501\u548c\u884c\u7ea7\u9501\u3002\u5e38\u89c1\u7684\u8868\u7ea7\u9501\u5305\u62ec\u8bfb\u9501\uff08\u5171\u4eab\u9501\uff09\u548c\u5199\u9501\uff08\u6392\u4ed6\u9501\uff09\uff0c\u5b83\u4eec\u5206\u522b\u9002\u7528\u4e8e\u5e76\u53d1\u8bfb\u548c\u5199\u7684\u573a\u666f\u3002\u884c\u7ea7\u9501\u5219\u662f\u5728\u8868\u4e2d\u7684\u884c\u7ea7\u522b\u4e0a\u52a0\u9501\uff0c\u53ef\u4ee5\u66f4\u7ec6\u7c92\u5ea6\u5730\u8fdb\u884c\u5e76\u53d1\u63a7\u5236\u3002\u5728\u4f7f\u7528\u9501\u4e4b\u524d\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u9501\u7c7b\u578b\u3002<\/p>\n

\u4e8c\u3001\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501<\/p>\n

\u957f\u65f6\u95f4\u6301\u6709\u9501\u4f1a\u5bfc\u81f4\u5176\u4ed6\u4e8b\u52a1\u7684\u7b49\u5f85\u548c\u963b\u585e\uff0c\u964d\u4f4e\u7cfb\u7edf\u7684\u5e76\u53d1\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u9501\u7684\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u5c3d\u91cf\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u5c3d\u5feb\u5b8c\u6210\u5bf9\u6570\u636e\u7684\u64cd\u4f5c\uff0c\u5e76\u53ca\u65f6\u91ca\u653e\u9501\u8d44\u6e90\u3002<\/p>\n

\u793a\u4f8b\uff1a<\/p>\n

BEGIN;\n-- \u83b7\u53d6\u9501\u5e76\u6267\u884c\u64cd\u4f5c\nSELECT * FROM table FOR UPDATE;\n-- \u6267\u884c\u5176\u4ed6\u64cd\u4f5c\nCOMMIT;<\/pre>\n
\u4e0a\u8ff0\u793a\u4f8b\u4e2d\u4f7f\u7528\u4e86FOR UPDATE<\/code>\u8bed\u53e5\u83b7\u53d6\u5199\u9501\uff0c\u5e76\u5728\u4e8b\u52a1\u7ed3\u675f\u540e\u91ca\u653e\u3002<\/p>\n
\u4e09\u3001\u907f\u514d\u6b7b\u9501<\/p>\n
\u6b7b\u9501\u662f\u6307\u591a\u4e2a\u4e8b\u52a1\u5faa\u73af\u7b49\u5f85\u5bf9\u65b9\u6301\u6709\u7684\u9501\u8d44\u6e90\uff0c\u4ece\u800c\u5bfc\u81f4\u7cfb\u7edf\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u7684\u60c5\u51b5\u3002\u5728\u907f\u514d\u6b7b\u9501\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u51e0\u79cd\u7b56\u7565\uff1a<\/p>\n
    \n
  1. \u786e\u4fdd\u4e8b\u52a1\u4e2d\u83b7\u53d6\u9501\u7684\u987a\u5e8f\u4e00\u81f4\uff0c\u907f\u514d\u5faa\u73af\u7b49\u5f85\u3002<\/li>\n
  2. \u4f7f\u7528SELECT ... FOR UPDATE<\/code>\u8bed\u53e5\u65f6\uff0c\u5c3d\u91cf\u6309\u7167\u7d22\u5f15\u987a\u5e8f\u83b7\u53d6\u9501\uff0c\u907f\u514d\u4ea7\u751f\u51b2\u7a81\u3002<\/li>\n
  3. \u8bbe\u7f6e\u5408\u7406\u7684\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\uff08\u5982\u8bfb\u5df2\u63d0\u4ea4\uff09\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u9501\u7ade\u4e89\u3002<\/li>\n
  4. \u76d1\u63a7\u548c\u8bb0\u5f55\u6b7b\u9501\u4e8b\u4ef6\uff0c\u5e76\u53ca\u65f6\u89e3\u51b3\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\uff1a<\/p>\n
    -- \u4e8b\u52a11\nBEGIN;\nSELECT * FROM table1 FOR UPDATE;\nSELECT * FROM table2 FOR UPDATE;\n-- \u6267\u884c\u5176\u4ed6\u64cd\u4f5c\nCOMMIT;\n\n-- \u4e8b\u52a12\nBEGIN;\nSELECT * FROM table2 FOR UPDATE;\nSELECT * FROM table1 FOR UPDATE;\n-- \u6267\u884c\u5176\u4ed6\u64cd\u4f5c\nCOMMIT;<\/pre>\n
    \u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u4e8b\u52a11\u9996\u5148\u83b7\u53d6table1\u7684\u5199\u9501\uff0c\u7136\u540e\u5c1d\u8bd5\u83b7\u53d6table2\u7684\u5199\u9501\uff1b\u800c\u4e8b\u52a12\u5219\u76f8\u53cd\uff0c\u8fd9\u6837\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6b7b\u9501\u7684\u53d1\u751f\u3002\u4e3a\u4e86\u907f\u514d\u6b7b\u9501\uff0c\u53ef\u4ee5\u7edf\u4e00\u83b7\u53d6\u9501\u7684\u987a\u5e8f\uff0c\u5982\u6309\u7167\u8868\u540d\u7684\u5b57\u6bcd\u987a\u5e8f\u83b7\u53d6\u9501\u3002<\/p>\n
    \u56db\u3001\u5408\u7406\u4f7f\u7528\u4e8b\u52a1<\/p>\n
    \u4e8b\u52a1\u662f\u4e00\u7ec4SQL\u8bed\u53e5\u7684\u903b\u8f91\u5355\u5143\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5728\u4f7f\u7528\u4e8b\u52a1\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u4e8b\u9879\uff1a<\/p>\n
      \n
    1. \u5c3d\u91cf\u7f29\u5c0f\u4e8b\u52a1\u7684\u8303\u56f4\uff0c\u51cf\u5c11\u9501\u7ade\u4e89\u7684\u53ef\u80fd\u6027\u3002<\/li>\n
    2. \u4f7f\u7528\u8f83\u77ed\u7684\u4e8b\u52a1\uff0c\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501\u3002<\/li>\n
    3. \u5c3d\u91cf\u5c06\u5e76\u53d1\u64cd\u4f5c\u653e\u5728\u4e8b\u52a1\u4e4b\u5916\uff0c\u51cf\u5c11\u9501\u7684\u7ade\u4e89\u3002<\/li>\n<\/ol>\n
      \u793a\u4f8b\uff1a<\/p>\n
      -- \u9519\u8bef\u793a\u4f8b\uff1a\u957f\u65f6\u95f4\u6301\u6709\u9501\nBEGIN;\nSELECT * FROM table1 FOR UPDATE;\n-- \u957f\u65f6\u95f4\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\nCOMMIT;\n\n-- \u6b63\u786e\u793a\u4f8b\uff1a\u5c3d\u5feb\u5b8c\u6210\u64cd\u4f5c\u5e76\u91ca\u653e\u9501\nBEGIN;\n-- \u5c3d\u5feb\u5b8c\u6210\u5bf9table1\u7684\u64cd\u4f5c\nCOMMIT;<\/pre>\n
      \u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u793a\u4f8b\u6301\u6709\u9501\u7684\u65f6\u95f4\u8f83\u957f\uff0c\u53ef\u80fd\u5bfc\u81f4\u5176\u4ed6\u4e8b\u52a1\u7684\u7b49\u5f85\u548c\u963b\u585e\u3002\u800c\u7b2c\u4e8c\u4e2a\u793a\u4f8b\u5219\u5c3d\u5feb\u5b8c\u6210\u64cd\u4f5c\uff0c\u5e76\u53ca\u65f6\u91ca\u653e\u9501\u8d44\u6e90\u3002<\/p>\n
      \u603b\u7ed3\uff1a<\/p>\n
      MySQL\u9501\u7684\u4f7f\u7528\u662f\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u548c\u5e76\u53d1\u63a7\u5236\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u4f46\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u7ec6\u8282\u3002\u672c\u6587\u4ecb\u7ecd\u4e86MySQL\u9501\u7684\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879\uff0c\u5e76\u63d0\u4f9b\u4e86\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5305\u62ec\u9009\u62e9\u5408\u9002\u7684\u9501\u7c7b\u578b\u3001\u907f\u514d\u957f\u65f6\u95f4\u6301\u6709\u9501\u3001\u907f\u514d\u6b7b\u9501\u53ca\u5408\u7406\u4f7f\u7528\u4e8b\u52a1\u7b49\u3002\u5e0c\u671b\u80fd\u591f\u5bf9\u8bfb\u8005\u5728\u4f7f\u7528MySQL\u9501\u65f6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
      \u4eca\u5929\u5173\u4e8e\u300a\u6ce8\u610f\u4e8b\u9879\uff1aMySQL \u9501\u7684\u6b63\u786e\u4f7f\u7528\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n
      \n
      \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
      \u6ce8\u610f\u4e8b\u9879\uff1aMySQL \u9501\u7684\u6b63\u786e\u4f7f...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199629","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199629","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199629"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199629\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}