{"id":5885,"date":"2024-11-14T09:30:27","date_gmt":"2024-11-14T01:30:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5885\/"},"modified":"2024-11-14T09:30:27","modified_gmt":"2024-11-14T01:30:27","slug":"sql%e9%99%8d%e5%ba%8f%e6%8e%92%e5%ba%8f%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5885\/","title":{"rendered":"sql\u964d\u5e8f\u6392\u5e8f\u600e\u4e48\u5199"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5bf9 sql \u67e5\u8be2\u7ed3\u679c\u964d\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 order by \u5b50\u53e5\uff0c\u8bed\u6cd5\u4e3a\uff1aselect &#8230; order by column_name desc\u3002\u5176\u4e2d\uff0ccolumn_name \u662f\u8981\u6392\u5e8f\u7684\u5217\u540d\uff0cdesc \u8868\u793a\u964d\u5e8f\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u8981\u6309\u5b66\u751f\u6210\u7ee9\u4ece\u9ad8\u5230\u4f4e\u964d\u5e8f\u6392\u5e8f\uff0c\u67e5\u8be2\u8bed\u53e5\u4e3a\uff1aselect name, score from students order by score desc\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/03\/2024060321395149197.jpg\" class=\"aligncenter\" title=\"sql\u964d\u5e8f\u6392\u5e8f\u600e\u4e48\u5199\u63d2\u56fe\" alt=\"sql\u964d\u5e8f\u6392\u5e8f\u600e\u4e48\u5199\u63d2\u56fe\" \/><\/p>\n<p><strong>SQL \u964d\u5e8f\u6392\u5e8f<\/strong><\/p>\n<p>\u5728 SQL \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 ORDER BY \u5b50\u53e5\u6765\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\uff0c\u5373\u6309\u7167\u4ece\u5927\u5230\u5c0f\u7684\u987a\u5e8f\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>SELECT column_name, ...\nFROM table_name\nORDER BY column_name DESC;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>column_name\uff1a\u8981\u6392\u5e8f\u7684\u5217\u540d<\/li>\n<li>DESC\uff1a\u964d\u5e8f\u6392\u5e8f\u5173\u952e\u5b57<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u8981\u5bf9\u8868 students \u4e2d\u7684\u5b66\u751f\u6210\u7ee9\u4ece\u9ad8\u5230\u4f4e\u964d\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT name, score\nFROM students\nORDER BY score DESC;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u8981\u5bf9\u591a\u4e2a\u5217\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u9017\u53f7\u5206\u9694\u5217\u540d\uff0c\u4f8b\u5982\uff1aORDER BY column_name1 DESC, column_name2 DESC\u3002<\/li>\n<li>\u5bf9\u4e8e\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6570\u636e\uff0c\u964d\u5e8f\u6392\u5e8f\u6309 Unicode \u7801\u503c\u6392\u5e8f\u3002<\/li>\n<li>NULL \u503c\u901a\u5e38\u88ab\u89c6\u4e3a\u6bd4\u5176\u4ed6\u4efb\u4f55\u503c\u90fd\u5c0f\uff0c\u56e0\u6b64\u964d\u5e8f\u6392\u5e8f\u65f6 NULL \u503c\u5c06\u6392\u5728\u6700\u540e\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fsql\u964d\u5e8f\u6392\u5e8f\u600e\u4e48\u5199\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>\u8981\u5bf9 sql \u67e5\u8be2\u7ed3\u679c\u964d\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528 order by \u5b50\u53e5\uff0c\u8bed\u6cd5\u4e3a\uff1aselect &#8230; order by column_name desc\u3002\u5176\u4e2d\uff0ccolumn_name \u662f\u8981\u6392\u5e8f\u7684\u5217\u540d\uff0cdesc \u8868\u793a\u964d\u5e8f\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u8981\u6309\u5b66\u751f\u6210\u7ee9\u4ece\u9ad8\u5230\u4f4e\u964d\u5e8f\u6392\u5e8f\uff0c\u67e5\u8be2\u8bed\u53e5\u4e3a\uff1aselect name, score from students order by score desc\u3002 SQL \u964d\u5e8f\u6392\u5e8f \u5728 SQL \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 ORDER BY \u5b50\u53e5\u6765\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\uff0c\u5373\u6309\u7167\u4ece\u5927\u5230\u5c0f\u7684\u987a\u5e8f\u3002 \u8bed\u6cd5\uff1a SELECT column_name, &#8230; FROM table_name ORDER BY column_name DESC; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a column_name\uff1a\u8981\u6392\u5e8f\u7684\u5217\u540d DESC\uff1a\u964d\u5e8f\u6392\u5e8f\u5173\u952e\u5b57 \u793a\u4f8b\uff1a \u8981\u5bf9\u8868 students \u4e2d\u7684\u5b66\u751f\u6210\u7ee9\u4ece\u9ad8\u5230\u4f4e\u964d\u5e8f\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT name, score FROM students ORDER BY score [&hellip;]<\/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-5885","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5885","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=5885"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5885\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}