{"id":75958,"date":"2024-10-16T02:40:24","date_gmt":"2024-10-15T18:40:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75958\/"},"modified":"2024-10-16T02:40:24","modified_gmt":"2024-10-15T18:40:24","slug":"mysql-%e5%88%86%e5%8d%80%e8%a1%a8%e5%b0%8d%e5%87%bd%e6%95%b8%e7%9a%84%e9%99%90%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75958\/","title":{"rendered":"MySQL \u5206\u5340\u8868\u5c0d\u51fd\u6578\u7684\u9650\u5236"},"content":{"rendered":"<h1 id=\"mysql-%e5%88%86%e5%8d%80%e8%a1%a8%e5%b0%8d%e5%87%bd%e6%95%b8%e7%9a%84%e9%99%90%e5%88%b6-JkRpaNPvPw\">MySQL \u5206\u5340\u8868\u5c0d\u51fd\u6578\u7684\u9650\u5236<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL \u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u6578\u64da\u5eab\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5206\u5340\u8868\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u5206\u5340\u8868\u5141\u8a31\u7528\u6236\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u7269\u7406\u5340\u57df\u4e2d\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u7ba1\u7406\u6548\u7387\u3002\u7136\u800c\uff0c\u4f7f\u7528\u5206\u5340\u8868\u6642\uff0c\u5c0d\u65bc\u67d0\u4e9b\u51fd\u6578\u7684\u9650\u5236\u4e5f\u9700\u8981\u7279\u5225\u6ce8\u610f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e5%8d%80%e8%a1%a8%ef%bc%9f-JkRpaNPvPw\">\u4ec0\u9ebc\u662f\u5206\u5340\u8868\uff1f<\/h2>\n<p>\u5206\u5340\u8868\u662f\u5c07\u4e00\u500b\u8868\u7684\u6578\u64da\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\uff08\u5982\u7bc4\u570d\u3001\u5217\u8868\u6216\u54c8\u5e0c\uff09\u5283\u5206\u70ba\u591a\u500b\u90e8\u5206\u7684\u6280\u8853\u3002\u9019\u6a23\u505a\u7684\u597d\u8655\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a\u67e5\u8a62\u53ea\u9700\u6383\u63cf\u76f8\u95dc\u7684\u5206\u5340\uff0c\u800c\u4e0d\u662f\u6574\u500b\u8868\u3002<\/li>\n<li>\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff1a\u53ef\u4ee5\u5c0d\u55ae\u500b\u5206\u5340\u9032\u884c\u64cd\u4f5c\uff0c\u5982\u522a\u9664\u6216\u5099\u4efd\uff0c\u800c\u4e0d\u5f71\u97ff\u6574\u500b\u8868\u3002<\/li>\n<li>\u63d0\u9ad8\u53ef\u64f4\u5c55\u6027\uff1a\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u53ef\u4ee5\u8f15\u9b06\u6dfb\u52a0\u65b0\u7684\u5206\u5340\u3002<\/li>\n<\/ul>\n<h2 id=\"mysql-%e5%88%86%e5%8d%80%e8%a1%a8%e7%9a%84%e5%87%bd%e6%95%b8%e9%99%90%e5%88%b6-JkRpaNPvPw\">MySQL \u5206\u5340\u8868\u7684\u51fd\u6578\u9650\u5236<\/h2>\n<p>\u5118\u7ba1\u5206\u5340\u8868\u6709\u8a31\u591a\u512a\u9ede\uff0c\u4f46\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u51fd\u6578\u7684\u9650\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7684\u9650\u5236\uff1a<\/p>\n<h3 id=\"1-%e4%b8%8d%e6%94%af%e6%8c%81%e6%9f%90%e4%ba%9b%e8%81%9a%e5%90%88%e5%87%bd%e6%95%b8-JkRpaNPvPw\">1. \u4e0d\u652f\u6301\u67d0\u4e9b\u805a\u5408\u51fd\u6578<\/h3>\n<p>\u5728\u5206\u5340\u8868\u4e2d\uff0c\u67d0\u4e9b\u805a\u5408\u51fd\u6578\uff08\u5982 COUNT\u3001SUM\u3001AVG \u7b49\uff09\u5728\u67e5\u8a62\u6642\u53ef\u80fd\u6703\u53d7\u5230\u9650\u5236\u3002\u7279\u5225\u662f\u7576\u9019\u4e9b\u51fd\u6578\u6d89\u53ca\u5230\u591a\u500b\u5206\u5340\u6642\uff0cMySQL \u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u8a08\u7b97\u7d50\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT COUNT(*) FROM partitioned_table;<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0cMySQL \u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u5730\u8a08\u7b97\u6240\u6709\u5206\u5340\u7684\u7e3d\u548c\uff0c\u5c0e\u81f4\u7d50\u679c\u4e0d\u6e96\u78ba\u3002<\/p>\n<h3 id=\"2-%e4%b8%8d%e6%94%af%e6%8c%81%e6%9f%90%e4%ba%9b%e5%ad%90%e6%9f%a5%e8%a9%a2-JkRpaNPvPw\">2. \u4e0d\u652f\u6301\u67d0\u4e9b\u5b50\u67e5\u8a62<\/h3>\n<p>\u5728\u4f7f\u7528\u5206\u5340\u8868\u6642\uff0c\u67d0\u4e9b\u985e\u578b\u7684\u5b50\u67e5\u8a62\u53ef\u80fd\u6703\u53d7\u5230\u9650\u5236\u3002\u7279\u5225\u662f\u7576\u5b50\u67e5\u8a62\u6d89\u53ca\u5230\u5206\u5340\u9375\u6642\uff0cMySQL \u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u57f7\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM partitioned_table WHERE id IN (SELECT id FROM another_table);<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u7121\u6cd5\u57f7\u884c\u3002<\/p>\n<h3 id=\"3-%e5%87%bd%e6%95%b8%e7%9a%84%e4%bd%bf%e7%94%a8%e9%99%90%e5%88%b6-JkRpaNPvPw\">3. \u51fd\u6578\u7684\u4f7f\u7528\u9650\u5236<\/h3>\n<p>\u5728\u5206\u5340\u8868\u4e2d\uff0c\u67d0\u4e9b\u51fd\u6578\uff08\u5982 NOW()\u3001CURDATE() \u7b49\uff09\u5728\u5206\u5340\u9375\u7684\u8a08\u7b97\u4e2d\u53ef\u80fd\u7121\u6cd5\u4f7f\u7528\u3002\u9019\u610f\u5473\u8457\uff0c\u5982\u679c\u4f60\u5e0c\u671b\u6839\u64da\u7576\u524d\u65e5\u671f\u9032\u884c\u5206\u5340\uff0c\u5247\u9700\u8981\u63d0\u524d\u8a08\u7b97\u4e26\u5b58\u5132\u9019\u4e9b\u503c\uff0c\u800c\u4e0d\u80fd\u5728\u67e5\u8a62\u6642\u52d5\u614b\u751f\u6210\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%85%8b%e6%9c%8d%e9%80%99%e4%ba%9b%e9%99%90%e5%88%b6%ef%bc%9f-JkRpaNPvPw\">\u5982\u4f55\u514b\u670d\u9019\u4e9b\u9650\u5236\uff1f<\/h2>\n<p>\u5118\u7ba1\u5b58\u5728\u9019\u4e9b\u9650\u5236\uff0c\u4f46\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4e00\u4e9b\u63aa\u65bd\u4f86\u514b\u670d\u9019\u4e9b\u6311\u6230\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u5408\u9069\u7684\u7d22\u5f15\uff1a\u78ba\u4fdd\u5728\u5206\u5340\u8868\u4e0a\u4f7f\u7528\u5408\u9069\u7684\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li>\u7c21\u5316\u67e5\u8a62\uff1a\u76e1\u91cf\u907f\u514d\u8907\u96dc\u7684\u5b50\u67e5\u8a62\uff0c\u4f7f\u7528 JOIN \u4f86\u66ff\u4ee3\u3002<\/li>\n<li>\u9810\u8a08\u7b97\u503c\uff1a\u5c0d\u65bc\u9700\u8981\u4f7f\u7528\u7684\u51fd\u6578\u503c\uff0c\u8003\u616e\u5728\u63d2\u5165\u6578\u64da\u6642\u9032\u884c\u9810\u8a08\u7b97\uff0c\u4e26\u5c07\u7d50\u679c\u5b58\u5132\u5728\u8868\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JkRpaNPvPw\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u5206\u5340\u8868\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u7ba1\u7406\u5927\u91cf\u6578\u64da\uff0c\u4f46\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\u9700\u8981\u6ce8\u610f\u5c0d\u51fd\u6578\u7684\u9650\u5236\u3002\u4e86\u89e3\u9019\u4e9b\u9650\u5236\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u63aa\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u5206\u5340\u8868\u5c0d\u51fd\u6578\u7684\u9650\u5236\uff0c\u63a2\u7d22\u5982\u4f55\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u53ca\u6578\u64da\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-75958","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75958","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=75958"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75958\/revisions"}],"predecessor-version":[{"id":75959,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75958\/revisions\/75959"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}