{"id":143789,"date":"2024-11-01T01:15:21","date_gmt":"2024-10-31T17:15:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143789\/"},"modified":"2024-11-01T01:15:22","modified_gmt":"2024-10-31T17:15:22","slug":"sql-%e9%bb%9e%e6%bb%b4%e4%b9%8b-with-%e8%aa%9e%e5%8f%a5%e5%92%8c%e5%ad%90%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%80%a7%e8%83%bd%e6%af%94%e8%bc%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143789\/","title":{"rendered":"SQL \u9ede\u6ef4\u4e4b with \u8a9e\u53e5\u548c\u5b50\u67e5\u8a62\u7684\u6027\u80fd\u6bd4\u8f03"},"content":{"rendered":"<h1 id=\"sql-%e9%bb%9e%e6%bb%b4%e4%b9%8b-with-%e8%aa%9e%e5%8f%a5%e5%92%8c%e5%ad%90%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%80%a7%e8%83%bd%e6%af%94%e8%bc%83-FHJXMXlthW\">SQL \u9ede\u6ef4\u4e4b with \u8a9e\u53e5\u548c\u5b50\u67e5\u8a62\u7684\u6027\u80fd\u6bd4\u8f03<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u7528\u65bc\u67e5\u8a62\u548c\u64cd\u4f5c\u8cc7\u6599\u7684\u4e3b\u8981\u5de5\u5177\u3002\u7576\u6211\u5011\u9700\u8981\u5f9e\u8cc7\u6599\u5eab\u4e2d\u63d0\u53d6\u8cc7\u6599\u6642\uff0c\u901a\u5e38\u6703\u4f7f\u7528\u4e0d\u540c\u7684\u67e5\u8a62\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u5169\u7a2e\u65b9\u5f0f\u662f\u4f7f\u7528 <code>WITH<\/code> \u8a9e\u53e5\uff08\u4e5f\u7a31\u70ba\u516c\u7528\u8868\u9054\u5f0f\uff0cCTE\uff09\u548c\u5b50\u67e5\u8a62\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u63a2\u8a0e\u9019\u5169\u7a2e\u67e5\u8a62\u65b9\u5f0f\u7684\u6027\u80fd\u6bd4\u8f03\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u969b\u7684\u4f8b\u5b50\u4f86\u5e6b\u52a9\u7406\u89e3\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-with-%e8%aa%9e%e5%8f%a5%ef%bc%9f-FHJXMXlthW\">\u4ec0\u9ebc\u662f WITH \u8a9e\u53e5\uff1f<\/h2>\n<p><code>WITH<\/code> \u8a9e\u53e5\u5141\u8a31\u7528\u6236\u5b9a\u7fa9\u4e00\u500b\u81e8\u6642\u7684\u7d50\u679c\u96c6\uff0c\u9019\u500b\u7d50\u679c\u96c6\u53ef\u4ee5\u5728\u5f8c\u7e8c\u7684\u67e5\u8a62\u4e2d\u88ab\u5f15\u7528\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u63d0\u9ad8\u67e5\u8a62\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u8907\u96dc\u67e5\u8a62\u6642\u3002<\/p>\n<pre><code>WITH SalesCTE AS (\n    SELECT ProductID, SUM(Amount) AS TotalSales\n    FROM Sales\n    GROUP BY ProductID\n)\nSELECT p.ProductName, s.TotalSales\nFROM Products p\nJOIN SalesCTE s ON p.ProductID = s.ProductID;\n<\/code><\/pre>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%90%e6%9f%a5%e8%a9%a2%ef%bc%9f-FHJXMXlthW\">\u4ec0\u9ebc\u662f\u5b50\u67e5\u8a62\uff1f<\/h2>\n<p>\u5b50\u67e5\u8a62\u662f\u5d4c\u5957\u5728\u5176\u4ed6\u67e5\u8a62\u4e2d\u7684\u67e5\u8a62\u3002\u5b83\u53ef\u4ee5\u7528\u65bc\u9078\u64c7\u3001\u66f4\u65b0\u6216\u522a\u9664\u8cc7\u6599\u3002\u5b50\u67e5\u8a62\u7684\u4e3b\u8981\u7279\u9ede\u662f\u5b83\u53ef\u4ee5\u5728\u4e3b\u67e5\u8a62\u4e2d\u76f4\u63a5\u4f7f\u7528\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u975e\u5e38\u9748\u6d3b\u3002<\/p>\n<pre><code>SELECT p.ProductName, (\n    SELECT SUM(Amount)\n    FROM Sales\n    WHERE ProductID = p.ProductID\n) AS TotalSales\nFROM Products p;\n<\/code><\/pre>\n<h2 id=\"%e6%80%a7%e8%83%bd%e6%af%94%e8%bc%83-FHJXMXlthW\">\u6027\u80fd\u6bd4\u8f03<\/h2>\n<p>\u5728\u6027\u80fd\u65b9\u9762\uff0c<code>WITH<\/code> \u8a9e\u53e5\u548c\u5b50\u67e5\u8a62\u5404\u6709\u512a\u7f3a\u9ede\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u7684\u6bd4\u8f03\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u53ef\u8b80\u6027\uff1a<\/strong>\u4f7f\u7528 <code>WITH<\/code> \u8a9e\u53e5\u53ef\u4ee5\u4f7f\u67e5\u8a62\u66f4\u5177\u53ef\u8b80\u6027\uff0c\u7279\u5225\u662f\u7576\u67e5\u8a62\u908f\u8f2f\u8f03\u70ba\u8907\u96dc\u6642\u3002\u5b50\u67e5\u8a62\u53ef\u80fd\u6703\u4f7f\u67e5\u8a62\u8b8a\u5f97\u96e3\u4ee5\u7406\u89e3\u3002<\/li>\n<li><strong>\u91cd\u7528\u6027\uff1a<\/strong>\u5728 <code>WITH<\/code> \u8a9e\u53e5\u4e2d\u5b9a\u7fa9\u7684\u7d50\u679c\u96c6\u53ef\u4ee5\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u591a\u6b21\u4f7f\u7528\uff0c\u800c\u5b50\u67e5\u8a62\u5247\u9700\u8981\u91cd\u8907\u57f7\u884c\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u57f7\u884c\u8a08\u5283\uff1a<\/strong>\u67d0\u4e9b\u8cc7\u6599\u5eab\u7cfb\u7d71\u5728\u8655\u7406 <code>WITH<\/code> \u8a9e\u53e5\u6642\uff0c\u80fd\u5920\u751f\u6210\u66f4\u512a\u5316\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u76f8\u5c0d\u800c\u8a00\uff0c\u5b50\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\u53ef\u80fd\u4e0d\u5982 <code>WITH<\/code> \u8a9e\u53e5\u90a3\u9ebc\u9ad8\u6548\u3002<\/li>\n<li><strong>\u8cc7\u6599\u96c6\u5927\u5c0f\uff1a<\/strong>\u5982\u679c\u5b50\u67e5\u8a62\u8fd4\u56de\u7684\u8cc7\u6599\u96c6\u8f03\u5927\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 <code>WITH<\/code> \u8a9e\u53e5\u4f86\u9650\u5236\u8cc7\u6599\u96c6\u7684\u5927\u5c0f\u53ef\u80fd\u6703\u66f4\u6709\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-FHJXMXlthW\">\u5be6\u969b\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u9078\u64c7\u4f7f\u7528 <code>WITH<\/code> \u8a9e\u53e5\u9084\u662f\u5b50\u67e5\u8a62\uff0c\u901a\u5e38\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u9700\u6c42\u548c\u67e5\u8a62\u7684\u8907\u96dc\u6027\u3002\u4f8b\u5982\uff0c\u7576\u9700\u8981\u9032\u884c\u591a\u6b21\u8a08\u7b97\u6216\u9700\u8981\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u4f7f\u7528\u76f8\u540c\u7684\u7d50\u679c\u96c6\u6642\uff0c<code>WITH<\/code> \u8a9e\u53e5\u6703\u66f4\u70ba\u5408\u9069\u3002\u800c\u5728\u7c21\u55ae\u7684\u67e5\u8a62\u4e2d\uff0c\u5b50\u67e5\u8a62\u53ef\u80fd\u6703\u66f4\u76f4\u63a5\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-FHJXMXlthW\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0c<code>WITH<\/code> \u8a9e\u53e5\u548c\u5b50\u67e5\u8a62\u5404\u6709\u5176\u512a\u52e2\u548c\u52a3\u52e2\u3002\u5728\u9078\u64c7\u4f7f\u7528\u54ea\u4e00\u7a2e\u65b9\u5f0f\u6642\uff0c\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u7684\u67e5\u8a62\u9700\u6c42\u3001\u53ef\u8b80\u6027\u548c\u6027\u80fd\u8003\u91cf\u4f86\u505a\u51fa\u6c7a\u7b56\u3002\u7121\u8ad6\u9078\u64c7\u54ea\u4e00\u7a2e\u65b9\u5f0f\uff0c\u7406\u89e3\u5176\u80cc\u5f8c\u7684\u539f\u7406\u548c\u6027\u80fd\u5f71\u97ff\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 SQL \u9ede\u6ef4\u4e4b\u4e2d\u8a9e\u53e5\u8207\u5b50\u67e5\u8a62\u7684\u6027\u80fd\u6bd4\u8f03\uff0c\u4e86\u89e3\u5982\u4f55\u512a\u5316\u67e5\u8a62\u6548\u7387\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u901f\u5ea6\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-143789","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143789","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=143789"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143789\/revisions"}],"predecessor-version":[{"id":143790,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143789\/revisions\/143790"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}