{"id":200695,"date":"2025-05-06T13:24:24","date_gmt":"2025-05-06T05:24:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200695\/"},"modified":"2025-05-06T13:24:24","modified_gmt":"2025-05-06T05:24:24","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-mysql-%e7%bb%9f%e8%ae%a1%e6%af%8f%e4%b8%aa%e7%9b%91%e6%b5%8b%e5%af%b9%e8%b1%a1%e7%9a%84%e8%a7%a3%e6%9e%90%e5%a4%b1%e8%b4%a5%e7%8e%87%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200695\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 MySQL \u7edf\u8ba1\u6bcf\u4e2a\u76d1\u6d4b\u5bf9\u8c61\u7684\u89e3\u6790\u5931\u8d25\u7387\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 MySQL \u7edf\u8ba1\u6bcf\u4e2a\u76d1\u6d4b\u5bf9\u8c61\u7684\u89e3\u6790\u5931\u8d25\u7387\uff1f<\/h1>\n<p>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241112\/17313725086732a5dcd3417.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql \u5206\u7ec4\u7edf\u8ba1\u5931\u8d25\u7387<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5982\u4f55\u5728 mysql \u4e2d\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u7edf\u8ba1\uff0c\u8ba1\u7b97\u6307\u5b9a\u5b57\u6bb5\u7684\u5931\u8d25\u7387\uff1f\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u5177\u6709\u4ee5\u4e0b\u7ed3\u6784\u7684\u8868\uff1a<\/p>\n<pre>create table `parse_monitoring` (\n  `id` int not null auto_increment,\n  `track_source_id` int not null,\n  `is_parsed` int not null,\n  `parsed_at` timestamp not null default current_timestamp on update current_timestamp,\n  primary key (`id`),\n  key `index_parsed_at` (`parsed_at`)\n) engine=innodb default charset=utf8mb4 collate=utf8mb4_0900_ai_ci;<\/pre>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>track_source_id \u8868\u793a\u76d1\u6d4b\u5bf9\u8c61<\/li>\n<li>is_parsed \u8868\u793a\u89e3\u6790\u662f\u5426\u6210\u529f\uff0c0 \u8868\u793a\u5931\u8d25\uff0c1 \u8868\u793a\u6210\u529f<\/li>\n<li>parsed_at \u8868\u793a\u89e3\u6790\u65f6\u95f4<\/li>\n<\/ul>\n<p>\u7ed9\u51fa\u8fd9\u6837\u7684\u9700\u6c42\uff0c\u7edf\u8ba1\u6bcf\u4e2a track_source_id \u7684\u89e3\u6790\u5931\u8d25\u7387\u3002<\/p>\n<p><strong>\u89e3\u7b54\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b sql \u67e5\u8be2\u6765\u5b9e\u73b0\uff1a<\/p>\n<pre>SELECT track_source_id, 1 - SUM(is_parsed) \/ COUNT(*)\nFROM parse_monitoring\nGROUP BY track_source_id<\/pre>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 MySQL \u7edf\u8ba1\u6bcf\u4e2a\u76d1&#46;&#46;&#46;<\/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-200695","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200695","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=200695"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200695\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}