{"id":182822,"date":"2024-11-10T00:08:20","date_gmt":"2024-11-09T16:08:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/182822\/"},"modified":"2024-11-10T00:08:21","modified_gmt":"2024-11-09T16:08:21","slug":"%e5%af%a6%e6%99%82%e5%88%86%e6%9e%90%e9%9c%80%e8%a6%81sql%e5%92%8c%e8%a4%87%e9%9b%9c%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/182822\/","title":{"rendered":"\u5be6\u6642\u5206\u6790\u9700\u8981SQL\u548c\u8907\u96dc\u67e5\u8a62"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e6%99%82%e5%88%86%e6%9e%90%e9%9c%80%e8%a6%81sql%e5%92%8c%e8%a4%87%e9%9b%9c%e6%9f%a5%e8%a9%a2-gfApKDRwOL\">\u5be6\u6642\u5206\u6790\u9700\u8981SQL\u548c\u8907\u96dc\u67e5\u8a62<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u5be6\u6642\u5206\u6790\u5df2\u6210\u70ba\u4f01\u696d\u6c7a\u7b56\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u6fc0\u589e\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u548c\u5206\u6790\u9019\u4e9b\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u548c\u8907\u96dc\u67e5\u8a62\u5728\u9019\u4e00\u904e\u7a0b\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5be6\u6642\u5206\u6790\u7684\u9700\u6c42\uff0c\u4ee5\u53caSQL\u548c\u8907\u96dc\u67e5\u8a62\u5982\u4f55\u5e6b\u52a9\u4f01\u696d\u7372\u53d6\u6709\u50f9\u503c\u7684\u898b\u89e3\u3002<\/p>\n<h2 id=\"%e5%af%a6%e6%99%82%e5%88%86%e6%9e%90%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-gfApKDRwOL\">\u5be6\u6642\u5206\u6790\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5be6\u6642\u5206\u6790\u662f\u6307\u5728\u6578\u64da\u751f\u6210\u7684\u540c\u6642\u9032\u884c\u5206\u6790\uff0c\u9019\u4f7f\u5f97\u4f01\u696d\u80fd\u5920\u8fc5\u901f\u505a\u51fa\u53cd\u61c9\u3002\u7121\u8ad6\u662f\u91d1\u878d\u5e02\u5834\u7684\u4ea4\u6613\u3001\u793e\u4ea4\u5a92\u9ad4\u7684\u4e92\u52d5\uff0c\u9084\u662f\u96fb\u5b50\u5546\u52d9\u7684\u92b7\u552e\u6578\u64da\uff0c\u5be6\u6642\u5206\u6790\u90fd\u80fd\u63d0\u4f9b\u5373\u6642\u7684\u898b\u89e3\uff0c\u5e6b\u52a9\u4f01\u696d\u628a\u63e1\u6a5f\u6703\u548c\u61c9\u5c0d\u6311\u6230\u3002<\/p>\n<ul>\n<li><strong>\u5feb\u901f\u6c7a\u7b56\uff1a<\/strong>\u5be6\u6642\u6578\u64da\u5206\u6790\u4f7f\u4f01\u696d\u80fd\u5920\u5728\u77ac\u606f\u842c\u8b8a\u7684\u5e02\u5834\u4e2d\u8fc5\u901f\u505a\u51fa\u6c7a\u7b56\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6548\u7387\uff1a<\/strong>\u901a\u904e\u5373\u6642\u7372\u53d6\u6578\u64da\uff0c\u4f01\u696d\u53ef\u4ee5\u512a\u5316\u904b\u71df\u6d41\u7a0b\uff0c\u6e1b\u5c11\u8cc7\u6e90\u6d6a\u8cbb\u3002<\/li>\n<li><strong>\u589e\u5f37\u5ba2\u6236\u9ad4\u9a57\uff1a<\/strong>\u5be6\u6642\u5206\u6790\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u7406\u89e3\u5ba2\u6236\u9700\u6c42\uff0c\u5f9e\u800c\u63d0\u4f9b\u500b\u6027\u5316\u7684\u670d\u52d9\u3002<\/li>\n<\/ul>\n<h2 id=\"sql%e5%9c%a8%e5%af%a6%e6%99%82%e5%88%86%e6%9e%90%e4%b8%ad%e7%9a%84%e8%a7%92%e8%89%b2-gfApKDRwOL\">SQL\u5728\u5be6\u6642\u5206\u6790\u4e2d\u7684\u89d2\u8272<\/h2>\n<p>SQL\u4f5c\u70ba\u4e00\u7a2e\u6a19\u6e96\u7684\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7684\u6aa2\u7d22\u548c\u64cd\u4f5c\u3002\u5b83\u7684\u9748\u6d3b\u6027\u548c\u5f37\u5927\u529f\u80fd\u4f7f\u5176\u6210\u70ba\u5be6\u6642\u5206\u6790\u7684\u7406\u60f3\u5de5\u5177\u3002\u4ee5\u4e0b\u662fSQL\u5728\u5be6\u6642\u5206\u6790\u4e2d\u7684\u5e7e\u500b\u95dc\u9375\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6aa2\u7d22\uff1a<\/strong>SQL\u80fd\u5920\u5feb\u901f\u6aa2\u7d22\u5927\u91cf\u6578\u64da\uff0c\u652f\u6301\u8907\u96dc\u7684\u67e5\u8a62\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u6578\u64da\u904e\u6ffe\uff1a<\/strong>\u901a\u904eWHERE\u5b50\u53e5\uff0cSQL\u53ef\u4ee5\u7cbe\u78ba\u5730\u904e\u6ffe\u51fa\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u5206\u6790\u7684\u6e96\u78ba\u6027\u3002<\/li>\n<li><strong>\u805a\u5408\u51fd\u6578\uff1a<\/strong>\u4f7f\u7528SUM\u3001AVG\u7b49\u805a\u5408\u51fd\u6578\uff0cSQL\u80fd\u5920\u5feb\u901f\u8a08\u7b97\u6578\u64da\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5e6b\u52a9\u4f01\u696d\u5feb\u901f\u7372\u53d6\u95dc\u9375\u6307\u6a19\u3002<\/li>\n<\/ul>\n<h3 id=\"sql%e6%9f%a5%e8%a9%a2%e7%a4%ba%e4%be%8b-gfApKDRwOL\">SQL\u67e5\u8a62\u793a\u4f8b<\/h3>\n<pre><code>SELECT product_id, SUM(sales) AS total_sales\nFROM sales_data\nWHERE sale_date &gt;= NOW() - INTERVAL 1 DAY\nGROUP BY product_id\nORDER BY total_sales DESC;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528SQL\u4f86\u7372\u53d6\u904e\u53bb\u4e00\u5929\u5167\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u7e3d\u984d\uff0c\u9019\u5c0d\u65bc\u5be6\u6642\u76e3\u63a7\u92b7\u552e\u8868\u73fe\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e8%a4%87%e9%9b%9c%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-gfApKDRwOL\">\u8907\u96dc\u67e5\u8a62\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u5be6\u6642\u5206\u6790\u4e2d\uff0c\u7c21\u55ae\u7684\u67e5\u8a62\u5f80\u5f80\u7121\u6cd5\u6eff\u8db3\u9700\u6c42\u3002\u8907\u96dc\u67e5\u8a62\u80fd\u5920\u7d50\u5408\u591a\u500b\u6578\u64da\u8868\uff0c\u9032\u884c\u66f4\u6df1\u5165\u7684\u5206\u6790\u3002\u9019\u4e9b\u67e5\u8a62\u901a\u5e38\u6d89\u53ca\u806f\u63a5\u3001\u5b50\u67e5\u8a62\u548c\u7a97\u53e3\u51fd\u6578\u7b49\u9ad8\u7d1a\u529f\u80fd\u3002<\/p>\n<ul>\n<li><strong>\u806f\u63a5\u67e5\u8a62\uff1a<\/strong>\u901a\u904eJOIN\u64cd\u4f5c\uff0c\u4f01\u696d\u53ef\u4ee5\u5c07\u4e0d\u540c\u6578\u64da\u8868\u4e2d\u7684\u4fe1\u606f\u7d50\u5408\u8d77\u4f86\uff0c\u7372\u53d6\u66f4\u5168\u9762\u7684\u898b\u89e3\u3002<\/li>\n<li><strong>\u5b50\u67e5\u8a62\uff1a<\/strong>\u5b50\u67e5\u8a62\u5141\u8a31\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u5d4c\u5957\u53e6\u4e00\u500b\u67e5\u8a62\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u591a\u5c64\u6b21\u5206\u6790\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002<\/li>\n<li><strong>\u7a97\u53e3\u51fd\u6578\uff1a<\/strong>\u7a97\u53e3\u51fd\u6578\u80fd\u5920\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\u9032\u884c\u8a08\u7b97\uff0c\u7121\u9700\u5c07\u6578\u64da\u5206\u7d44\uff0c\u9019\u5c0d\u65bc\u5be6\u6642\u5206\u6790\u975e\u5e38\u6709\u5229\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a4%87%e9%9b%9c%e6%9f%a5%e8%a9%a2%e7%a4%ba%e4%be%8b-gfApKDRwOL\">\u8907\u96dc\u67e5\u8a62\u793a\u4f8b<\/h3>\n<pre><code>SELECT customer_id, \n       COUNT(order_id) AS total_orders, \n       AVG(order_amount) AS avg_order_value\nFROM orders\nWHERE order_date &gt;= NOW() - INTERVAL 1 MONTH\nGROUP BY customer_id\nHAVING total_orders &gt; 5\nORDER BY avg_order_value DESC;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u7372\u53d6\u904e\u53bb\u4e00\u500b\u6708\u5167\u4e0b\u55ae\u8d85\u904e\u4e94\u6b21\u7684\u5ba2\u6236\u7684\u8a02\u55ae\u6578\u91cf\u548c\u5e73\u5747\u8a02\u55ae\u91d1\u984d\uff0c\u9019\u5c0d\u65bc\u8b58\u5225\u9ad8\u50f9\u503c\u5ba2\u6236\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-gfApKDRwOL\">\u7d50\u8ad6<\/h2>\n<p>\u5be6\u6642\u5206\u6790\u5728\u7576\u4eca\u5546\u696d\u74b0\u5883\u4e2d\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u800cSQL\u548c\u8907\u96dc\u67e5\u8a62\u5247\u662f\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\u7684\u95dc\u9375\u5de5\u5177\u3002\u901a\u904e\u6709\u6548\u5730\u5229\u7528\u9019\u4e9b\u6280\u8853\uff0c\u4f01\u696d\u80fd\u5920\u5feb\u901f\u7372\u53d6\u6709\u50f9\u503c\u7684\u898b\u89e3\uff0c\u5f9e\u800c\u5728\u7af6\u722d\u4e2d\u4fdd\u6301\u512a\u52e2\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u548c\u5206\u6790\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u548c\u670d\u52d9\u5668\u67b6\u69cb\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u5982\u4f55\u4f7f\u7528SQL\u548c\u8907\u96dc\u67e5\u8a62\u5c07\u6709\u52a9\u65bc\u4f01\u696d\u5728\u6578\u64da\u9a45\u52d5\u7684\u6642\u4ee3\u4e2d\u84ec\u52c3\u767c\u5c55\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u6578\u64da\u8655\u7406\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5be6\u6642\u5206\u6790\u4f9d\u8cf4SQL\u548c\u8907\u96dc\u67e5\u8a62\uff0c\u4ee5\u5feb\u901f\u8655\u7406\u6578\u64da\u4e26\u63d0\u4f9b\u5373\u6642\u6d1e\u5bdf\uff0c\u52a9\u529b\u6c7a\u7b56\u548c\u696d\u52d9\u512a\u5316\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-182822","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=182822"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182822\/revisions"}],"predecessor-version":[{"id":182823,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182822\/revisions\/182823"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=182822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=182822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=182822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}