{"id":27000,"date":"2024-11-24T15:52:38","date_gmt":"2024-11-24T07:52:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/27000\/"},"modified":"2024-11-24T15:52:38","modified_gmt":"2024-11-24T07:52:38","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93%e6%9f%a5%e8%af%a2%e4%b8%ad%ef%bc%8c%e8%81%9a%e5%90%88%e5%87%bd%e6%95%b0%e5%92%8c%e6%8e%92%e5%ba%8f%e7%9a%84%e6%89%a7%e8%a1%8c%e9%a1%ba%e5%ba%8f%e5%a6%82%e4%bd%95%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27000\/","title":{"rendered":"\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u805a\u5408\u51fd\u6570\u548c\u6392\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5982\u4f55\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173114480391783.jpg\" class=\"aligncenter\" title=\"\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u805a\u5408\u51fd\u6570\u548c\u6392\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5982\u4f55\uff1f\u63d2\u56fe\" alt=\"\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u805a\u5408\u51fd\u6570\u548c\u6392\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5982\u4f55\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6570\u636e\u5e93\u6267\u884c\u4f18\u5148\u7ea7<\/strong><\/p>\n<p>\u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u5f53\u540c\u65f6\u4f7f\u7528\u805a\u5408\u51fd\u6570\u548c\u6392\u5e8f\u65f6\uff0c\u6267\u884c\u987a\u5e8f\u81f3\u5173\u91cd\u8981\u3002\u805a\u5408\u51fd\u6570\uff08\u5982 sum\u3001count \u7b49\uff09\u901a\u5e38\u5148\u4e8e\u6392\u5e8f\u6267\u884c\uff0c\u8fd9\u662f\u56e0\u4e3a\u6392\u5e8f\u4f9d\u8d56\u4e8e\u805a\u5408\u8ba1\u7b97\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT SUM(salary)\nFROM employees\nORDER BY salary DESC;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u67e5\u8be2\u4e2d\uff0c\u805a\u5408\u51fd\u6570 sum(salary) \u4f1a\u5148\u4e8e\u6392\u5e8f order by salary desc \u6267\u884c\u3002\u8fd9\u610f\u5473\u7740\uff1a<\/p>\n<ol>\n<li>\u7cfb\u7edf\u4f1a\u9996\u5148\u8ba1\u7b97\u51fa\u6bcf\u4f4d\u5458\u5de5\u7684\u5de5\u8d44\u603b\u548c\u3002<\/li>\n<li>\u7136\u540e\u6839\u636e\u5de5\u8d44\u603b\u548c\u7684\u503c\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4ece\u6700\u9ad8\u5230\u6700\u4f4e\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u6837\u7684\u6267\u884c\u987a\u5e8f\u53ef\u4ee5\u786e\u4fdd\u6392\u5e8f\u7ed3\u679c\u7684\u51c6\u786e\u6027\uff0c\u56e0\u4e3a\u5b83\u662f\u57fa\u4e8e\u805a\u5408\u8ba1\u7b97\u540e\u7684\u503c\u7684\u3002\u5982\u679c\u6392\u5e8f\u5728\u805a\u5408\u51fd\u6570\u4e4b\u524d\u6267\u884c\uff0c\u90a3\u4e48\u6392\u5e8f\u7ed3\u679c\u5c06\u65e0\u610f\u4e49\uff0c\u56e0\u4e3a\u5728\u6392\u5e8f\u65f6\u8fd8\u672a\u8ba1\u7b97\u51fa\u805a\u5408\u503c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u548c\u6392\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5982\u4f55\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u5e93\u6267\u884c\u4f18\u5148\u7ea7 \u5728\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u5f53\u540c\u65f6\u4f7f\u7528\u805a\u5408\u51fd\u6570\u548c\u6392\u5e8f\u65f6\uff0c\u6267\u884c\u987a\u5e8f\u81f3\u5173\u91cd\u8981\u3002\u805a\u5408\u51fd\u6570\uff08\u5982 sum\u3001count \u7b49\uff09\u901a\u5e38\u5148\u4e8e\u6392\u5e8f\u6267\u884c\uff0c\u8fd9\u662f\u56e0\u4e3a\u6392\u5e8f\u4f9d\u8d56\u4e8e\u805a\u5408\u8ba1\u7b97\u7684\u7ed3\u679c\u3002 \u8003\u8651\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT SUM(salary) FROM employees ORDER BY salary DESC; \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u67e5\u8be2\u4e2d\uff0c\u805a\u5408\u51fd\u6570 sum(salary) \u4f1a\u5148\u4e8e\u6392\u5e8f order by salary desc \u6267\u884c\u3002\u8fd9\u610f\u5473\u7740\uff1a \u7cfb\u7edf\u4f1a\u9996\u5148\u8ba1\u7b97\u51fa\u6bcf\u4f4d\u5458\u5de5\u7684\u5de5\u8d44\u603b\u548c\u3002 \u7136\u540e\u6839\u636e\u5de5\u8d44\u603b\u548c\u7684\u503c\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4ece\u6700\u9ad8\u5230\u6700\u4f4e\u3002 \u8fd9\u6837\u7684\u6267\u884c\u987a\u5e8f\u53ef\u4ee5\u786e\u4fdd\u6392\u5e8f\u7ed3\u679c\u7684\u51c6\u786e\u6027\uff0c\u56e0\u4e3a\u5b83\u662f\u57fa\u4e8e\u805a\u5408\u8ba1\u7b97\u540e\u7684\u503c\u7684\u3002\u5982\u679c\u6392\u5e8f\u5728\u805a\u5408\u51fd\u6570\u4e4b\u524d\u6267\u884c\uff0c\u90a3\u4e48\u6392\u5e8f\u7ed3\u679c\u5c06\u65e0\u610f\u4e49\uff0c\u56e0\u4e3a\u5728\u6392\u5e8f\u65f6\u8fd8\u672a\u8ba1\u7b97\u51fa\u805a\u5408\u503c\u3002 \u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\uff0c\u548c\u6392\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u5982\u4f55\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\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-27000","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27000","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=27000"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27000\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}