{"id":6764,"date":"2024-11-14T11:00:58","date_gmt":"2024-11-14T03:00:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6764\/"},"modified":"2024-11-14T11:00:58","modified_gmt":"2024-11-14T03:00:58","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-sql-%e6%89%be%e5%87%ba%e5%9c%a8%e6%8c%87%e5%ae%9a%e6%97%a5%e6%9c%9f%e5%86%85%e6%8b%a5%e6%9c%89%e6%89%80%e6%9c%89%e5%95%86%e5%93%81%e7%9a%84%e5%95%86%e5%ba%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6764\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 SQL \u627e\u51fa\u5728\u6307\u5b9a\u65e5\u671f\u5185\u62e5\u6709\u6240\u6709\u5546\u54c1\u7684\u5546\u5e97\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/172990882168602.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528 SQL \u627e\u51fa\u5728\u6307\u5b9a\u65e5\u671f\u5185\u62e5\u6709\u6240\u6709\u5546\u54c1\u7684\u5546\u5e97\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528 SQL \u627e\u51fa\u5728\u6307\u5b9a\u65e5\u671f\u5185\u62e5\u6709\u6240\u6709\u5546\u54c1\u7684\u5546\u5e97\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5bfb\u627e\u540c\u65f6\u62e5\u6709\u6307\u5b9a\u65e5\u671f\u5185\u5546\u54c1\u7684\u5546\u5e97<\/strong><\/p>\n<p>\u5bf9\u4e8e\u63d0\u4f9b\u7684\u67e5\u8be2\uff0c\u5982\u4f55\u5728 sql \u4e2d\u627e\u51fa\u5728 9 \u6708 1 \u65e5\u30012 \u65e5\u548c 3 \u65e5\u90fd\u62e5\u6709\u5546\u54c1\u7684\u5546\u5e97\u5462\uff1f<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\uff1a<\/p>\n<pre>SELECT \u5546\u5e97\nFROM \u8868\nWHERE \u65e5\u671f &gt;= '2021-09-01' AND \u65e5\u671f &lt;= '2021-09-03'\nGROUP BY \u5546\u5e97\nHAVING COUNT(DISTINCT \u65e5\u671f) = 3;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8be5\u67e5\u8be2\u5c06\u4ece\u8868\u4e2d\u9009\u51fa\u5546\u5e97\u5217\uff0c\u9009\u62e9\u6761\u4ef6\u662f\u65e5\u671f\u5217\u5728 9 \u6708 1 \u65e5\u5230 3 \u65e5\u4e4b\u95f4\u3002\u7136\u540e\uff0c\u5b83\u5c06\u5546\u5e97\u5217\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u7ec4\u4e2d\u4e0d\u540c\u65e5\u671f\u7684\u8ba1\u6570\u3002having \u5b50\u53e5\u786e\u4fdd\u53ea\u6709\u540c\u65f6\u6ee1\u8db3\u4e09\u4e2a\u65e5\u671f\u8981\u6c42\u7684\u5546\u5e97\u624d\u4f1a\u88ab\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 SQL \u627e\u51fa\u5728\u6307\u5b9a\u65e5\u671f\u5185\u62e5\u6709\u6240\u6709\u5546\u54c1\u7684\u5546\u5e97\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfb\u627e\u540c\u65f6\u62e5\u6709\u6307\u5b9a\u65e5\u671f\u5185\u5546\u54c1\u7684\u5546\u5e97 \u5bf9\u4e8e\u63d0\u4f9b\u7684\u67e5\u8be2\uff0c\u5982\u4f55\u5728 sql \u4e2d\u627e\u51fa\u5728 9 \u6708 1 \u65e5\u30012 \u65e5\u548c 3 \u65e5\u90fd\u62e5\u6709\u5546\u54c1\u7684\u5546\u5e97\u5462\uff1f \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\uff1a SELECT \u5546\u5e97 FROM \u8868 WHERE \u65e5\u671f &gt;= &#8216;2021-09-01&#8217; AND \u65e5\u671f &lt;= &#8216;2021-09-03&#8217; GROUP BY \u5546\u5e97 HAVING COUNT(DISTINCT \u65e5\u671f) = 3; \u767b\u5f55\u540e\u590d\u5236 \u8be5\u67e5\u8be2\u5c06\u4ece\u8868\u4e2d\u9009\u51fa\u5546\u5e97\u5217\uff0c\u9009\u62e9\u6761\u4ef6\u662f\u65e5\u671f\u5217\u5728 9 \u6708 1 \u65e5\u5230 3 \u65e5\u4e4b\u95f4\u3002\u7136\u540e\uff0c\u5b83\u5c06\u5546\u5e97\u5217\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u7ec4\u4e2d\u4e0d\u540c\u65e5\u671f\u7684\u8ba1\u6570\u3002having \u5b50\u53e5\u786e\u4fdd\u53ea\u6709\u540c\u65f6\u6ee1\u8db3\u4e09\u4e2a\u65e5\u671f\u8981\u6c42\u7684\u5546\u5e97\u624d\u4f1a\u88ab\u9009\u62e9\u3002 \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 SQL \u627e\u51fa\u5728\u6307\u5b9a\u65e5\u671f\u5185\u62e5\u6709\u6240\u6709\u5546\u54c1\u7684\u5546\u5e97\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-6764","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6764","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=6764"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6764\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}