{"id":176,"date":"2006-12-30T04:16:07","date_gmt":"2006-12-30T04:16:07","guid":{"rendered":"http:\/\/www.jason695.idv.tw:81\/wordpress\/?p=176"},"modified":"2006-12-30T04:17:53","modified_gmt":"2006-12-30T04:17:53","slug":"group-by-order-by","status":"publish","type":"post","link":"https:\/\/jason695.why3s.tw\/wordpress\/2006\/12\/30\/group-by-order-by\/","title":{"rendered":"Group by + Order by"},"content":{"rendered":"<p><font color=\"#000000\">SELECT select_list<br \/>\nFROM table_source<br \/>\n[ WHERE search_condition ]<br \/>\n[ GROUP BY group_by_expression ]<br \/>\n[ HAVING search_condition ]<br \/>\n[ ORDER BY order_expression [ ASC | DESC ] ]<\/font><\/p>\n<p><font color=\"#000000\">\u4f7f\u7528GROUP BY\u642d\u914daggregate function<\/font><\/p>\n<blockquote><p><font color=\"#000000\">select number,max(name)<br \/>\nfrom student<br \/>\ngroup by number<br \/>\norder by number<\/font><\/p><\/blockquote>\n<p><font color=\"#000000\">\u4f7f\u7528[GROUP BY]\u5f8c\uff0c\u518d\u7528[ORDER BY]\uff0c\u80fd\u62ff\u4f60select_list\u7684\u6b04\u4f4d\u4f86\u6392\u5e8f\uff0c<br \/>\n\u5982\u8981\u4f7f\u7528<\/font><font color=\"#000000\">aggregate function,\u5247\u9808\u8a2d\u5b9a\u5225\u540d<\/font><\/p>\n<blockquote><p><font color=\"#000000\">select number,max(name) as X1<\/font><br \/>\n<font color=\"#000000\"> from student<\/font><br \/>\n<font color=\"#000000\"> group by number<\/font><br \/>\n<font color=\"#000000\"> order by X1<\/font><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>SELECT select_list FROM table_source [ WHERE search_con &hellip; <a href=\"https:\/\/jason695.why3s.tw\/wordpress\/2006\/12\/30\/group-by-order-by\/\" class=\"more-link\">\u95b1\u8b80\u5168\u6587 <span class=\"screen-reader-text\">Group by + Order by<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-176","post","type-post","status-publish","format-standard","hentry","category-5","no-featured-image"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts\/176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/comments?post=176"}],"version-history":[{"count":0,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/posts\/176\/revisions"}],"wp:attachment":[{"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/media?parent=176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/categories?post=176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jason695.why3s.tw\/wordpress\/wp-json\/wp\/v2\/tags?post=176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}