{"id":69261,"date":"2023-08-10T16:05:53","date_gmt":"2023-08-10T08:05:53","guid":{"rendered":"http:\/\/www.xiaoyebailong.com\/?p=69261"},"modified":"2023-11-20T01:06:48","modified_gmt":"2023-11-19T17:06:48","slug":"group-by%e5%88%86%e7%bb%84%e6%9f%a5%e8%af%a2%e5%90%8e%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"http:\/\/www.xiaoyebailong.com\/index.php\/2023\/08\/10\/69261.htm","title":{"rendered":"group by\u5206\u7ec4\u67e5\u8be2\u540e\u6392\u5e8f"},"content":{"rendered":"\n<p>\u5982\uff1a\u5206\u7ec4\u67e5\u8be2<\/p>\n\n\n\n<p>SELECT s.name name,COUNT(s.id) value FROM t_setmeal s,t_order o WHERE s.id=o.setmeal_id GROUP BY s.name<\/p>\n\n\n\n<p>1\u3001\u4e0a\u9762\u67e5\u8be2\u51fa\u6765\u7684\u5c31\u662f\u4e00\u4e2a\u65b0\u7684\u8868\uff0c\u4e00\u4e2a\u5c5e\u6027\u4e3a name, value \u7684\u8868\u3002<code>\uff08\u6ce8\u610f\uff1a\u6bcf\u4e2a\u6d3e\u751f\u8868\u90fd\u5fc5\u987b\u6709\u81ea\u5df1\u7684\u522b\u540d \uff09<\/code><\/p>\n\n\n\n<p>2\u3001\u4ee5\u4e0a\u9762\u7684\u8868\u4e3a\u57fa\u7840 \u6392\u5e8f\u67e5\u8be2<\/p>\n\n\n\n<p>select b.name,b.value<br>from<br>(SELECT s.name name,COUNT(s.id) value FROM t_setmeal s,t_order o WHERE s.id=o.setmeal_id GROUP BY s.name)<br>as b<br>order by b.value desc<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\uff1a\u5206\u7ec4\u67e5\u8be2 SELECT s.name name,COUNT(s.id) value FROM t_setmeal s,t_order o WHERE s.id=o.setmeal_id GROUP BY s.name 1\u3001\u4e0a\u9762\u67e5\u8be2\u51fa\u6765\u7684&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[641,642,67],"topic":[],"class_list":["post-69261","post","type-post","status-publish","format-standard","hentry","category-technology","tag-group-by","tag-order-by","tag-67"],"_links":{"self":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/69261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/comments?post=69261"}],"version-history":[{"count":1,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/69261\/revisions"}],"predecessor-version":[{"id":69262,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/69261\/revisions\/69262"}],"wp:attachment":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/media?parent=69261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/categories?post=69261"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/tags?post=69261"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/topic?post=69261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}