{"id":7132,"date":"2024-11-14T12:22:55","date_gmt":"2024-11-14T04:22:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/7132\/"},"modified":"2024-11-14T12:22:55","modified_gmt":"2024-11-14T04:22:55","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e4%b8%80%e4%b8%aa%e4%b8%8d%e6%94%af%e6%8c%81-over-%e5%87%bd%e6%95%b0%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%ef%bc%8c%e6%89%be%e5%87%ba%e9%97%ae%e7%ad%94%e4%b8%ad","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/7132\/","title":{"rendered":"\u5982\u4f55\u5728\u4e00\u4e2a\u4e0d\u652f\u6301 OVER \u51fd\u6570\u7684\u6570\u636e\u5e93\u4e2d\uff0c\u627e\u51fa\u95ee\u7b54\u4e2d\u6700\u9ad8\u590d\u5236\u91cf\u7684\u6700\u4f73\u7b54\u6848\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u5728\u4e00\u4e2a\u4e0d\u652f\u6301<\/p>\n

sql\u96be\u9898\uff1a\u5bfb\u627e\u95ee\u7b54\u4e2d\u6700\u9ad8\u590d\u5236\u91cf\u7684\u6700\u4f73\u7b54\u6848<\/strong><\/p>\n

\u5728\u95ee\u7b54\u7cfb\u7edf\u4e2d\uff0c\u4e3a\u6bcf\u4e2a\u56de\u7b54\u6807\u8bb0\u590d\u5236\u91cf\u548c\u70b9\u8d5e\u91cf\u3002\u5728\u7ea0\u7ed3\u4e00\u756a\u540e\uff0c\u4ece\u5e9e\u6742\u7684\u6570\u636e\u8868\u4e2d\u63d0\u53d6\u5982\u4e0b\u67e5\u8be2\u7ed3\u679c\uff1a<\/p>\n

\u9700\u6c42\uff1a<\/strong><\/p>\n

\u627e\u51fa\u6bcf\u4e2a\u56de\u7b54\u4e2d\u590d\u5236\u91cf\u6700\u9ad8\u7684\u7b54\u6848\u3002\u5982\u679c\u590d\u5236\u91cf\u76f8\u540c\uff0c\u5219\u9009\u62e9\u70b9\u8d5e\u91cf\u6700\u9ad8\u7684\u7b54\u6848\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6309\u7167 copy_count desc, zan_count desc \u8fdb\u884c\u5206\u7ec4\u3002<\/p>\n

\u6570\u636e\u5e93\u7248\u672c\u9650\u5236\uff1a<\/strong><\/p>\n

\u6570\u636e\u5e93\u7248\u672c\u4e3a 5.7.25\uff0c\u4e0d\u652f\u6301 over() \u51fd\u6570\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n

select * from (select * from \u56fe1 order by copy_count,zan_count) tmp group by tmp.question_id;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u539f\u7406\uff1a<\/strong><\/p>\n
    \n
  1. \u9996\u5148\uff0c\u6309\u7167 copy_count \u548c zan_count \u8fdb\u884c\u5012\u5e8f\u6392\u5e8f\u3002<\/li>\n
  2. \u7136\u540e\uff0c\u5bf9\u6392\u5e8f\u540e\u7684\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ee5 question_id \u4e3a\u5206\u7ec4\u952e\u3002<\/li>\n
  3. \u7531\u4e8e\u6bcf\u7ec4\u4e2d\u7684\u7b2c\u4e00\u6761\u8bb0\u5f55\u662f\u590d\u5236\u91cf\u6700\u9ad8\u4e14\u70b9\u8d5e\u91cf\u6700\u9ad8\u7684\u7b54\u6848\uff0c\u56e0\u6b64\u8be5\u67e5\u8be2\u5c06\u8fd4\u56de\u6240\u9700\u7684\u7ed3\u679c\u3002<\/li>\n<\/ol>\n
    \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5728\u4e00\u4e2a\u4e0d\u652f\u6301 OVER \u51fd\u6570\u7684\u6570\u636e\u5e93\u4e2d\uff0c\u627e\u51fa\u95ee\u7b54\u4e2d\u6700\u9ad8\u590d\u5236\u91cf\u7684\u6700\u4f73\u7b54\u6848\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":"
    sql\u96be\u9898\uff1a\u5bfb\u627e\u95ee\u7b54\u4e2d\u6700\u9ad8\u590d\u5236\u91cf\u7684\u6700\u4f73\u7b54\u6848 \u5728\u95ee\u7b54\u7cfb\u7edf\u4e2d\uff0c\u4e3a\u6bcf\u4e2a\u56de\u7b54\u6807\u8bb0\u590d\u5236\u91cf\u548c\u70b9\u8d5e\u91cf\u3002\u5728\u7ea0\u7ed3\u4e00\u756a\u540e\uff0c\u4ece\u5e9e\u6742\u7684\u6570\u636e\u8868\u4e2d\u63d0\u53d6\u5982\u4e0b\u67e5\u8be2\u7ed3\u679c\uff1a \u9700\u6c42\uff1a \u627e\u51fa\u6bcf\u4e2a\u56de\u7b54\u4e2d\u590d\u5236\u91cf\u6700\u9ad8\u7684\u7b54\u6848\u3002\u5982\u679c\u590d\u5236\u91cf\u76f8\u540c\uff0c\u5219\u9009\u62e9\u70b9\u8d5e\u91cf\u6700\u9ad8\u7684\u7b54\u6848\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6309\u7167 copy_count desc, zan_count desc \u8fdb\u884c\u5206\u7ec4\u3002 \u6570\u636e\u5e93\u7248\u672c\u9650\u5236\uff1a \u6570\u636e\u5e93\u7248\u672c\u4e3a 5.7.25\uff0c\u4e0d\u652f\u6301 over() \u51fd\u6570\u3002 \u89e3\u51b3\u65b9\u6848\uff1a select * from (select * from \u56fe1 order by copy_count,zan_count) tmp group by tmp.question_id; \u767b\u5f55\u540e\u590d\u5236 \u539f\u7406\uff1a \u9996\u5148\uff0c\u6309\u7167 copy_count \u548c zan_count \u8fdb\u884c\u5012\u5e8f\u6392\u5e8f\u3002 \u7136\u540e\uff0c\u5bf9\u6392\u5e8f\u540e\u7684\u7ed3\u679c\u8fdb\u884c\u5206\u7ec4\uff0c\u4ee5 question_id \u4e3a\u5206\u7ec4\u952e\u3002 \u7531\u4e8e\u6bcf\u7ec4\u4e2d\u7684\u7b2c\u4e00\u6761\u8bb0\u5f55\u662f\u590d\u5236\u91cf\u6700\u9ad8\u4e14\u70b9\u8d5e\u91cf\u6700\u9ad8\u7684\u7b54\u6848\uff0c\u56e0\u6b64\u8be5\u67e5\u8be2\u5c06\u8fd4\u56de\u6240\u9700\u7684\u7ed3\u679c\u3002 \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5728\u4e00\u4e2a\u4e0d\u652f\u6301 OVER \u51fd\u6570\u7684\u6570\u636e\u5e93\u4e2d\uff0c\u627e\u51fa\u95ee\u7b54\u4e2d\u6700\u9ad8\u590d\u5236\u91cf\u7684\u6700\u4f73\u7b54\u6848\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-7132","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7132","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=7132"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7132\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=7132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=7132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=7132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}