{"id":26811,"date":"2024-11-24T15:19:51","date_gmt":"2024-11-24T07:19:51","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26811\/"},"modified":"2024-11-24T15:19:51","modified_gmt":"2024-11-24T07:19:51","slug":"%e5%a6%82%e4%bd%95%e5%b0%86%e4%b8%89%e6%9d%a1-mysql-%e6%9f%a5%e8%af%a2%e4%bc%98%e5%8c%96%e4%b8%ba%e4%b8%80%e6%9d%a1%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26811\/","title":{"rendered":"\u5982\u4f55\u5c06\u4e09\u6761 MySQL \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173107119674083.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u5c06\u4e09\u6761 MySQL \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u5c06\u4e09\u6761 MySQL \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06\u4e09\u6761  \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f <\/strong><\/p>\n<p>\u5728\u4f18\u5316 mysql \u67e5\u8be2\u65f6\uff0c\u5c06\u591a\u6761\u67e5\u8be2\u5408\u5e76\u4e3a\u4e00\u6761\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u67e5\u8be2\uff1a<\/p>\n<pre>select count(*) as tp_count from `qra_works` where `created_time` &gt; '2023-05-10 18:44:37' limit 1\nselect count(*) as tp_count from `qra_works` where `created_time` &gt; '2023-05-10 18:44:37' and `version` = 'junior' limit 1\nselect count(*) as tp_count from `qra_works` where `created_time` &gt; '2023-05-10 18:44:37' and `version` = 'senior' limit 1<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u53ef\u4ee5\u5c06\u5b83\u4eec\u5408\u5e76\u4e3a\u4e00\u6761\u5982\u4e0b\uff1a<\/p>\n<pre>SELECT \n    version, COUNT(*) AS tp_count \nFROM \n    `qra_works` \nWHERE \n    `created_time` &gt; '2023-05-10 18:44:37' \n\ngroup by version<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u901a\u8fc7\u4f7f\u7528group by \u5b50\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u6309version \u5bf9\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ece\u800c\u8fd4\u56de\u4e24\u884c\uff0c\u5206\u522b\u4e3ajunior \u548csenior \u7684\u8ba1\u6570\u3002\u8fd9\u79cd\u4f18\u5316\u65b9\u5f0f\u53ef\u4ee5\u663e\u7740\u964d\u4f4e\u6570\u636e\u5e93\u7684\u8d1f\u8f7d\u5e76\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6\u3002 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5c06\u4e09\u6761 MySQL \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5c06\u4e09\u6761 \u67e5\u8be2\u4f18\u5316\u4e3a\u4e00\u6761\uff1f \u5728\u4f18\u5316 mysql \u67e5\u8be2\u65f6\uff0c\u5c06\u591a\u6761\u67e5\u8be2\u5408\u5e76\u4e3a\u4e00\u6761\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u67e5\u8be2\uff1a select count(*) as tp_count from `qra_works` where `created_time` &gt; &#8216;2023-05-10 18:44:37&#8217; limit 1 select count(*) as tp_count from `qra_works` where `created_time` &gt; &#8216;2023-05-10 18:44:37&#8217; and `version` = &#8216;junior&#8217; limit 1 select count(*) as tp_count from `qra_works` where `created_time` &gt; &#8216;2023-05-10 18:44:37&#8217; and `version` = &#8216;senior&#8217; limit 1 \u767b\u5f55\u540e\u590d\u5236 \u53ef\u4ee5\u5c06\u5b83\u4eec\u5408\u5e76\u4e3a\u4e00\u6761\u5982\u4e0b\uff1a SELECT [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-26811","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26811","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=26811"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26811\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}