{"id":200748,"date":"2025-05-06T14:18:20","date_gmt":"2025-05-06T06:18:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200748\/"},"modified":"2025-05-06T14:18:20","modified_gmt":"2025-05-06T06:18:20","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87%e5%a4%9a%e8%a1%a8%e6%9f%a5%e8%af%a2%e8%8e%b7%e5%8f%96%e7%89%b9%e5%ae%9a%e5%85%ac%e5%8f%b8%e4%b8%8b%e6%89%80%e6%9c%89%e4%ba%a7%e5%93%81%e7%9a%84%e6%9c%80%e6%96%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200748\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7\u591a\u8868\u67e5\u8be2\u83b7\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u901a\u8fc7\u591a\u8868\u67e5\u8be2\u83b7\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff1f<\/h1>\n<p>\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6570\u636e\u5e93\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u5982\u4f55\u901a\u8fc7\u591a\u8868\u67e5\u8be2\u83b7\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff1f\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241113\/17314796266734484aefc5d.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u591a\u8868\u67e5\u8be2\u6700\u65b0\u68c0\u6d4b\u62a5\u544a<\/strong><\/p>\n<p>\u6c42\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff0c\u901a\u5e38\u8981\u8fdb\u884c\u591a\u8868\u67e5\u8be2\u3002\u672c\u6587\u5c06\u901a\u8fc7\u5904\u7406\u4ea7\u54c1\u4fe1\u606f\u8868\u548c\u68c0\u6d4b\u4fe1\u606f\u8868\u4e24\u4e2a\u8868\u7684\u5173\u8054\u6570\u636e\uff0c\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n<p>\u7ed9\u5b9a\u4e24\u5f20\u8868\uff1a\u4ea7\u54c1\u4fe1\u606f\u8868 pro \u548c\u68c0\u6d4b\u4fe1\u606f\u8868 procheck\u3002pro \u8868\u4e2d company_id \u5b57\u6bb5\u7528\u4e8e\u5173\u8054\u516c\u53f8\u4fe1\u606f\uff0c\u800c procheck \u8868\u4e2d\u7684 pro_id \u5b57\u6bb5\u4e0e pro \u8868\u4e2d\u7684 id \u5b57\u6bb5\u5173\u8054\uff0c\u6bcf\u4e2a\u4ea7\u54c1\u5bf9\u5e94\u591a\u4e2a\u68c0\u6d4b\u4fe1\u606f\u8bb0\u5f55\u3002<\/p>\n<p>\u521d\u59cb\u67e5\u8be2\u5982\u4e0b\uff1a<\/p>\n<pre>select `pro`.`id`,`pro`.`pm`,`pro`.`company_id`,procheck.id as procheck__id,procheck.pro_id as procheck__pro_id,procheck.checkdate as procheck__checkdate \nfrom `da_pro` `pro` \nleft join `da_procheck` `procheck` on `pro`.`id`=`procheck`.`pro_id` \nwhere `pro`.`company_id` = 487<\/pre>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u53ef\u8fd4\u56de\u8be5\u7279\u5b9a\u516c\u53f8\u7684\u6240\u6709\u4ea7\u54c1\u53ca\u76f8\u5173\u68c0\u6d4b\u4fe1\u606f\u3002\u7136\u800c\uff0c\u6211\u4eec\u9700\u8981\u4ec5\u627e\u51fa\u6bcf\u4e2a\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\u3002<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u6539\u826f\u540e\u7684\u67e5\u8be2\uff1a<\/p>\n<pre>(\u4f60\u7684SQL\u8bed\u53e5) t1\nJOIN (\n    SELECT pro_id, MAX(checkdate) AS max_checkdate\n    FROM procheck\n    GROUP BY pro_id\n) t2\nON t1.procheck__pro_id = t2.pro_id AND t1.procheck__checkdate = t2.max_checkdate;<\/pre>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5f97\u51fa\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u5b50\u67e5\u8be2\u6c42\u51fa procheck \u8868\u4e2d\u6bcf\u4e2a\u4ea7\u54c1\u5bf9\u5e94\u7684\u6700\u65b0 checkdate\uff0c\u5f62\u6210\u4e34\u65f6\u8868 t2\u3002<\/li>\n<li>\u5c06 t1 \u548c t2 \u5728 pro_id \u548c checkdate \u5b57\u6bb5\u4e0a\u8fdb\u884c\u8fde\u63a5\uff0c\u786e\u4fdd\u4ec5\u9009\u62e9 procheck \u8868\u4e2d\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\u3002<\/li>\n<li>\u6700\u7ec8\u7ed3\u679c\u4e2d\u5c06\u5305\u542b\u8be5\u7279\u5b9a\u516c\u53f8\u4e0b\u7684\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\u3002<\/li>\n<\/ol>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u5982\u4f55\u901a\u8fc7\u591a\u8868\u67e5\u8be2\u83b7\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240\u6709\u4ea7\u54c1\u7684\u6700\u65b0\u68c0\u6d4b\u62a5\u544a\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u901a\u8fc7\u591a\u8868\u67e5\u8be2\u83b7\u53d6\u7279\u5b9a\u516c\u53f8\u4e0b\u6240&#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-200748","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200748","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=200748"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200748\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}