{"id":692,"date":"2020-06-23T14:48:28","date_gmt":"2020-06-23T06:48:28","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=692"},"modified":"2020-06-23T14:48:28","modified_gmt":"2020-06-23T06:48:28","slug":"innodb%e7%9a%84%e9%94%81","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=692","title":{"rendered":"innodb\u7684\u9501"},"content":{"rendered":"\n

\u884c\u9501\u3001\u95f4\u9699\u9501\u3001(\u4e34\u952e\u9501)nextKey locking<\/p>\n\n\n\n

\u5bf9\u4e8eRU\uff0cRC\u4f7f\u7528\u7684\u662f\u884c\u9501\uff0c\u5176\u4ed6\u7684\u4f7f\u7528\u4e34\u952e\u9501\uff08\u9632\u6b62\u5e7b\u8bfb\uff09\uff0c\u4f46\u662f\u5bf9\u4e8e\u666e\u901a\u7684select\u8bed\u53e5\uff0c\u5b9e\u9645\u4e0a\u662f\u4e0d\u52a0\u9501\u7684\uff0c\u4f7f\u7528\u4e00\u81f4\u6027\u975e\u9501\u5b9a\u8bfb\uff0c\u8bfb\u53d6\u5feb\u7167\u7684\u6570\u636e\u3002\u53ea\u6709\u663e\u5f0f\u7684select *** for update \u6216\u8005select *** in share mode\u624d\u4f1a\u52a0\u4e34\u952e\u9501\u3002\u4e34\u952e\u9501\u5728\u53ea\u4f7f\u7528\u4e3b\u952e\u7d22\u5f15\u6216\u8005\u552f\u4e00\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\uff0c\u4e5f\u4f1a\u9000\u5316\u4e3a\u884c\u9501\u3002<\/p>\n\n\n\n

InnoDB\u7684\u9501\u5b9a\u6a21\u5f0f\u5b9e\u9645\u4e0a\u53ef\u4ee5\u5206\u4e3a\u56db\u79cd\uff1a\u5171\u4eab\u9501\uff08S\uff09\uff0c\u6392\u4ed6\u9501\uff08X\uff09\uff0c\u610f\u5411\u5171\u4eab\u9501\uff08IS\uff09\u548c\u610f\u5411\u6392\u4ed6\u9501\uff08IX\uff09

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\u4f46\u662f\uff0c\u5982\u679c\u9047\u5230\u81ea\u5df1\u9700\u8981\u9501\u5b9a\u7684\u8d44\u6e90\u5df2\u7ecf\u88ab\u4e00\u4e2a\u6392\u4ed6\u9501\u5360\u6709\u4e4b\u540e\uff0c\u5219\u53ea\u80fd\u7b49\u5f85\u8be5\u9501\u5b9a\u91ca\u653e\u8d44\u6e90\u4e4b\u540e\u81ea\u5df1\u624d\u80fd\u83b7\u53d6\u9501\u5b9a\u8d44\u6e90\u5e76\u6dfb\u52a0\u81ea\u5df1\u7684\u9501\u5b9a\u3002

\u4ee5\u4e0b\u662f\u76f8\u5173\u5173\u7cfb\uff1a<\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u5982\u679c\u4e00\u4e2a\u4e8b\u52a1\u8bf7\u6c42\u7684\u9501\u6a21\u5f0f\u4e0e\u5f53\u524d\u7684\u9501\u517c\u5bb9\uff0cInnoDB\u5c31\u5c06\u8bf7\u6c42\u7684\u9501\u6388\u4e88\u8be5\u4e8b\u52a1\uff1b\u53cd\u4e4b\uff0c\u5982\u679c\u4e24\u8005\u4e0d\u517c\u5bb9\uff0c\u8be5\u4e8b\u52a1\u5c31\u8981\u7b49\u5f85\u9501\u91ca\u653e\u3002
\u610f\u5411\u9501\u662fInnoDB\u81ea\u52a8\u52a0\u7684\uff0c\u4e0d\u9700\u7528\u6237\u5e72\u9884\u3002<\/strong>

\u5bf9\u4e8eUPDATE\u3001DELETE\u548cINSERT\u8bed\u53e5\uff0cInnoDB\u4f1a\u81ea\u52a8\u7ed9\u6d89\u53ca\u6570\u636e\u96c6\u52a0\u6392\u4ed6\u9501\uff08X)\uff1b\u5bf9\u4e8e\u666e\u901aSELECT\u8bed\u53e5\uff0cInnoDB\u4e0d\u4f1a\u52a0\u4efb\u4f55\u9501\uff1b<\/strong>
\u81ea\u5df1\u9700\u8981\u7684\u8bdd\u53ef\u4ee5\u663e\u5f0f\u7684\u52a0\u9501\u3002<\/pre>\n\n\n\n
\"\"
\u8fd9\u4e2a\u56fe\u7247\u7684\u4f8b\u5b50\u8bf4\u660e\u4e86\u95f4\u9699\u9501\u7684\u5de5\u4f5c\u539f\u7406\u3002\u53c2\u8003\u4ee5\u4e0b\u6587\u7ae0\uff0c\u4e5f\u662f\u300aMySQL\u6280\u672f\u5185\u5e55  InnoDB\u5b58\u50a8\u5f15\u64ce \u300b\u91cc\u9762\u7684\u4f8b\u5b50\uff0c\u4e66\u91cc\u9762\u6ca1\u914d\u56fe\uff0c\u8fd9\u4e2a\u6e05\u6670\u4e0d\u5c11\u3002
https:\/\/blog.csdn.net\/bruceleenumberone\/article\/details\/81865045<\/a><\/figcaption><\/figure>\n\n\n\n
\u770b\u5230\u8fd9\u4e2a\u56fe\uff0c\u7ec8\u4e8e\u660e\u767d\u4e86\uff0c\u539f\u6765\u95f4\u9699\u9501\u662f\u524d\u540e\u95f4\u9699\u90fd\u4f1a\u52a0\uff0c\u5e76\u4e14\u8bb0\u5f55\u672c\u8eab\u4e5f\u4f1a\u52a0\u3002\u8c41\u7136\u5f00\u6717\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u884c\u9501\u3001\u95f4\u9699\u9501\u3001(\u4e34\u952e\u9501)nextKey locking \u5bf9\u4e8eRU\uff0cRC\u4f7f\u7528\u7684\u662f\u884c\u9501\uff0c\u5176\u4ed6\u7684\u4f7f\u7528\u4e34\u952e\u9501\uff08\u9632\u6b62\u5e7b\u8bfb […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[35,34],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/692"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=692"}],"version-history":[{"count":17,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/692\/revisions"}],"predecessor-version":[{"id":711,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/692\/revisions\/711"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}