{"id":200182,"date":"2025-05-06T10:56:07","date_gmt":"2025-05-06T02:56:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200182\/"},"modified":"2025-05-06T10:56:07","modified_gmt":"2025-05-06T02:56:07","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2%e8%bf%9e%e7%bb%ad%e4%b8%89%e5%a4%a9%e9%83%bd%e6%9c%89%e7%89%b9%e5%ae%9a%e5%95%86%e5%93%81%e5%ba%93%e5%ad%98%e7%9a%84%e5%95%86%e5%ba%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200182\/","title":{"rendered":"\u5982\u4f55\u67e5\u8be2\u8fde\u7eed\u4e09\u5929\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u5e93\u5b58\u7684\u5546\u5e97\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u67e5\u8be2\u8fde\u7eed\u4e09\u5929\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u5e93\u5b58\u7684\u5546\u5e97\uff1f<\/h1>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730017470671df8be82022.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u67e5\u8be2\u540c\u65f6\u62e5\u6709\u5546\u54c1\u5e93\u5b58\u7684\u4e09\u5929\u7684\u5546\u5e97<\/strong><\/p>\n<p><strong>\u95ee\u9898:<\/strong><\/p>\n<p>\u5df2\u77e5\u5b58\u50a8\u7740\u5546\u5e97\u3001\u65e5\u671f\u548c\u5546\u54c1\u4fe1\u606f\u7684\u8868\u683c\uff0c\u5982\u4f55\u67e5\u8be29\u67081\u53f7\u30012\u53f7\u30013\u53f7\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u5e93\u5b58\u7684\u5546\u5e97\uff1f<\/p>\n<p><strong>\u601d\u8def:<\/strong><\/p>\n<p>\u4f7f\u7528 sql \u67e5\u8be2\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\u7684 \u5546\u5e97 \u8bb0\u5f55\uff1a<\/p>\n<ol>\n<li>\u5728 2021-09-01 \u6709\u7279\u5b9a\u5546\u54c1\u7684\u5e93\u5b58\u3002<\/li>\n<li>\u5728 2021-09-02 \u6709\u7279\u5b9a\u5546\u54c1\u7684\u5e93\u5b58\u3002<\/li>\n<li>\u5728 2021-09-03 \u6709\u7279\u5b9a\u5546\u54c1\u7684\u5e93\u5b58\u3002<\/li>\n<\/ol>\n<p><strong>\u67e5\u8be2\u8bed\u53e5:<\/strong><\/p>\n<pre>SELECT\n  \u5546\u5e97\nFROM\n  \u8868\nWHERE\n  \u65e5\u671f IN ('2021-09-01', '2021-09-02', '2021-09-03')\nGROUP BY\n  \u5546\u5e97\nHAVING\n  COUNT(*) = 3;<\/pre>\n<p><strong>\u89e3\u91ca:<\/strong><\/p>\n<ul>\n<li>select \u8bed\u53e5\u9009\u62e9 \u5546\u5e97 \u5217\u3002<\/li>\n<li>from \u8bed\u53e5\u6307\u5b9a\u8981\u67e5\u8be2\u7684\u8868\u683c \u8868\u3002<\/li>\n<li>where \u5b50\u53e5\u8fc7\u6ee4 \u65e5\u671f \u5217\u4e2d\u7684\u503c\uff0c\u786e\u4fdd\u5b83\u4eec\u5728 2021-09-01 \u5230 2021-09-03 \u4e4b\u95f4\u3002<\/li>\n<li>group by \u5b50\u53e5\u6309 \u5546\u5e97 \u5217\u5bf9\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\u3002<\/li>\n<li>having \u5b50\u53e5\u786e\u4fdd\u6bcf\u4e2a\u5206\u7ec4\u4e2d\u90fd\u6709 3 \u6761\u8bb0\u5f55\uff0c\u8868\u660e\u5546\u5e97\u5728\u4e09\u5929\u5185\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u7684\u5e93\u5b58\u3002<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u67e5\u8be2\u8fde\u7eed\u4e09\u5929\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u5e93\u5b58\u7684\u5546\u5e97\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u67e5\u8be2\u8fde\u7eed\u4e09\u5929\u90fd\u6709\u7279\u5b9a\u5546\u54c1\u5e93\u5b58&#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-200182","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200182","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=200182"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200182\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}