{"id":3127,"date":"2022-05-07T20:44:59","date_gmt":"2022-05-07T12:44:59","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3127"},"modified":"2022-05-07T21:56:50","modified_gmt":"2022-05-07T13:56:50","slug":"mysql-%e7%b3%bb%e5%88%97%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3127","title":{"rendered":"mysql \u7cfb\u5217\u95ee\u9898"},"content":{"rendered":"\n<p>1.\u5982\u4f55\u7b97B+\u6811\u7684\u9ad8\u5ea6<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u7531\u4e8e\u4e00\u4e2a\u9875\u662f16k\uff0c\u4e3b\u952e\u5982\u679c\u662fbigint=8B,\u52a0\u4e0a\u5730\u5740\u6307\u94886B\uff0c\u90a3\u4e48\u53ef\u4ee5\u5b5816k\/14B=1170\u884c\u6570\u636e\u7684\u6307\u9488\uff0c\u90a3\u4e48\u4e24\u5c42\u7684\u8bdd\u5c31\u53ef\u4ee5\u5b581170*16k\/\u5355\u6761\u6570\u636e\u5927\u5c0f\uff0c\u5047\u8bbe\u4e00\u6761\u6570\u636e\u662f1k\uff0c\u90a3\u4e48\u5c31\u662f18724\n\n\u5047\u8bbe\u662f\u4e09\u5c42\uff0c1170*1170*16K\/1K=2000w+\n\n\u6240\u4ee5\u9700\u8981\u770b\u5355\u6761\u6570\u636e\u5927\u5c0f\u6765\u770b<\/pre>\n\n\n\n<p>2.\u4e3a\u4ec0\u4e48hash\u7528\u7684\u5c11<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql\u662f\u81ea\u9002\u5e94\u7684hash\uff0c\u4e0d\u80fd\u5e72\u9884\u3002hash\u4e0d\u652f\u6301\u8303\u56f4\u67e5\u8be2<\/pre>\n\n\n\n<p>3.\u4e8b\u52a1\u5982\u4f55\u5b9e\u73b0<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">1.redolog \u7528\u6765\u6301\u4e45\u8bdd\n2.undolog \u7528\u6765\u56de\u6eda<\/pre>\n\n\n\n<p>4.\u4e0d\u7b26\u5408\u6700\u5de6\u524d\u7f00\u3001\u9690\u5f0f\u8f6c\u8fd8\u3001\u8d70\u7d22\u5f15\u6548\u7387\u53cd\u800c\u4e0d\u9ad8\u5bfc\u81f4\u7d22\u5f15\u5931\u6548<\/p>\n\n\n\n<p>\u8d70\u7d22\u5f15\u6548\u7387\u53cd\u800c\u4e0d\u9ad8\uff0c\u7d22\u5f15\u8bbe\u7f6e\u7684\u4e0d\u5408\u7406\uff0c\u4e00\u4e9b\u91cd\u590d\u7684\u5b57\u6bb5\u8bbe\u7f6e\u4e86\u7d22\u5f15\u4e4b\u7c7b\u7684\u3002<\/p>\n\n\n\n<p>5.\u5206\u5e03\u5f0f\u600e\u4e48\u8bbe\u7f6eid<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">1.uuid\n2.\u4fee\u6539\u6b65\u957f\u7684\u81ea\u589e\uff0c\u63d0\u524d\u89c4\u5212\n3.redis\u3001zk\u3001mongodb\u7b49\u6765\u8bbe\u7f6e\n4.\u96ea\u82b1\u7b97\u6cd5\n<\/pre>\n\n\n\n<p>6.\u4e00\u81f4\u6027hash<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u5982\u679c\u4f7f\u7528hash\u5206\u7247\uff0c\u5728\u6269\u5bb9\u6216\u8005\u5b95\u673a\u65f6\u5019\uff0c\u4f1a\u5b58\u5728\u8f83\u591a\u7684\u6570\u636e\u8fc1\u79fb\u3002\u4f7f\u7528\u4e00\u81f4\u6027hash\u7684\u8bdd\u53ef\u4ee5\u51cf\u5c11\u8fd9\u79cd\u6570\u636e\u7684\u6570\u91cf\u3002\n<\/pre>\n\n\n\n<p><a href=\"https:\/\/xuliugencn.blog.csdn.net\/article\/details\/79549368?spm=1001.2101.3001.6661.1&amp;utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1-79549368-blog-108375298.pc_relevant_default&amp;depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1-79549368-blog-108375298.pc_relevant_default&amp;utm_relevant_index=1\">(26\u6761\u6d88\u606f) \u9762\u8bd5\u5fc5\u5907\uff1a\u4ec0\u4e48\u662f\u4e00\u81f4\u6027Hash\u7b97\u6cd5\uff1f_Java\u540e\u7aef\u6280\u672f\u7684\u535a\u5ba2-CSDN\u535a\u5ba2_\u4e00\u81f4\u6027hash<\/a><\/p>\n\n\n\n<p>7.\u8986\u76d6\u7d22\u5f15<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">select \u7684\u5b57\u6bb5\u5728\u7d22\u5f15\u4e2d\u76f4\u63a5\u547d\u4e2d\u4e86\uff0c\u4e0d\u9700\u8981\u56de\u8868\u64cd\u4f5c<\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.\u5982\u4f55\u7b97B+\u6811\u7684\u9ad8\u5ea6 \u7531\u4e8e\u4e00\u4e2a\u9875\u662f16k\uff0c\u4e3b\u952e\u5982\u679c\u662fbigint=8B,\u52a0\u4e0a\u5730\u5740\u6307\u94886B\uff0c\u90a3\u4e48\u53ef\u4ee5\u5b5816k\/ [&hellip;]<\/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":[62],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3127"}],"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=3127"}],"version-history":[{"count":14,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3127\/revisions"}],"predecessor-version":[{"id":3141,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3127\/revisions\/3141"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}