{"id":66635,"date":"2024-10-14T19:20:16","date_gmt":"2024-10-14T11:20:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66635\/"},"modified":"2024-10-14T19:20:16","modified_gmt":"2024-10-14T11:20:16","slug":"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3575%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_cte_recursive_forbids_aggregation%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66635\/","title":{"rendered":"MySQL \u932f\u8aa4\u865f\uff1a3575\uff1b\u7b26\u865f\uff1aER_CTE_RECURSIVE_FORBIDS_AGGREGATION\uff1bSQLSTATE\uff1aHY000 \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3575%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_cte_recursive_forbids_aggregation%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae-zJCckFPJaH\">MySQL \u932f\u8aa4\u865f\uff1a3575\uff1b\u7b26\u865f\uff1aER_CTE_RECURSIVE_FORBIDS_AGGREGATION\uff1bSQLSTATE\uff1aHY000 \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa4\u865f 3575\uff0c\u7b26\u865f\u70ba ER_CTE_RECURSIVE_FORBIDS_AGGREGATION\uff0cSQLSTATE \u70ba HY000\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4f7f\u7528\u905e\u6b78\u516c\u7528\u8868\u8868\u9054\u5f0f\uff08CTE\uff09\u6642\uff0c\u4e26\u4e14\u5728\u67e5\u8a62\u4e2d\u5617\u8a66\u9032\u884c\u805a\u5408\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-zJCckFPJaH\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL \u7684\u905e\u6b78 CTE \u5141\u8a31\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u905e\u6b78\u64cd\u4f5c\uff0c\u9019\u5c0d\u65bc\u8655\u7406\u5c64\u6b21\u7d50\u69cb\u6578\u64da\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u6839\u64da MySQL \u7684\u8a2d\u8a08\uff0c\u905e\u6b78 CTE \u4e2d\u4e0d\u5141\u8a31\u9032\u884c\u805a\u5408\u64cd\u4f5c\u3002\u7576\u7528\u6236\u5617\u8a66\u5728\u905e\u6b78 CTE \u4e2d\u4f7f\u7528\u805a\u5408\u51fd\u6578\uff08\u5982 COUNT\u3001SUM\u3001AVG \u7b49\uff09\u6642\uff0c\u5c31\u6703\u89f8\u767c\u932f\u8aa4 3575\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-zJCckFPJaH\">\u793a\u4f8b<\/h3>\n<pre><code>WITH RECURSIVE cte AS (\n    SELECT id, parent_id, name FROM categories WHERE parent_id IS NULL\n    UNION ALL\n    SELECT c.id, c.parent_id, c.name FROM categories c\n    INNER JOIN cte ON c.parent_id = cte.id\n)\nSELECT COUNT(*) FROM cte;  -- \u9019\u88e1\u6703\u5f15\u767c\u932f\u8aa4 3575\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528\u4e86\u905e\u6b78 CTE \u4f86\u7372\u53d6\u5206\u985e\u7684\u5c64\u6b21\u7d50\u69cb\uff0c\u4f46\u5728\u6700\u7d42\u67e5\u8a62\u4e2d\u5617\u8a66\u4f7f\u7528 COUNT \u51fd\u6578\u9032\u884c\u805a\u5408\uff0c\u9019\u5c0e\u81f4\u4e86\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%96%b9%e6%b3%95-zJCckFPJaH\">\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u958b\u767c\u8005\u9700\u8981\u91cd\u65b0\u8a2d\u8a08\u67e5\u8a62\uff0c\u907f\u514d\u5728\u905e\u6b78 CTE \u4e2d\u4f7f\u7528\u805a\u5408\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u53ef\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%e4%b8%80%ef%bc%9a%e5%b0%87%e8%81%9a%e5%90%88%e6%93%8d%e4%bd%9c%e7%a7%bb%e8%87%b3%e5%a4%96%e9%83%a8%e6%9f%a5%e8%a9%a2-zJCckFPJaH\">\u89e3\u6c7a\u65b9\u6848\u4e00\uff1a\u5c07\u805a\u5408\u64cd\u4f5c\u79fb\u81f3\u5916\u90e8\u67e5\u8a62<\/h3>\n<p>\u53ef\u4ee5\u5c07\u805a\u5408\u64cd\u4f5c\u79fb\u81f3\u5916\u90e8\u67e5\u8a62\u4e2d\uff0c\u9019\u6a23\u5c31\u4e0d\u6703\u9055\u53cd MySQL \u7684\u9650\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>WITH RECURSIVE cte AS (\n    SELECT id, parent_id, name FROM categories WHERE parent_id IS NULL\n    UNION ALL\n    SELECT c.id, c.parent_id, c.name FROM categories c\n    INNER JOIN cte ON c.parent_id = cte.id\n)\nSELECT COUNT(*) FROM (SELECT * FROM cte) AS subquery;  -- \u6b63\u78ba\u7684\u7528\u6cd5\n<\/code><\/pre>\n<h3 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8%e8%87%a8%e6%99%82%e8%a1%a8-zJCckFPJaH\">\u89e3\u6c7a\u65b9\u6848\u4e8c\uff1a\u4f7f\u7528\u81e8\u6642\u8868<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528\u81e8\u6642\u8868\u4f86\u5b58\u5132\u905e\u6b78 CTE \u7684\u7d50\u679c\uff0c\u7136\u5f8c\u5728\u81e8\u6642\u8868\u4e0a\u9032\u884c\u805a\u5408\u64cd\u4f5c\uff1a<\/p>\n<pre><code>CREATE TEMPORARY TABLE temp_cte AS\nWITH RECURSIVE cte AS (\n    SELECT id, parent_id, name FROM categories WHERE parent_id IS NULL\n    UNION ALL\n    SELECT c.id, c.parent_id, c.name FROM categories c\n    INNER JOIN cte ON c.parent_id = cte.id\n)\nSELECT * FROM cte;\n\nSELECT COUNT(*) FROM temp_cte;  -- \u6b63\u78ba\u7684\u7528\u6cd5\n<\/code><\/pre>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-zJCckFPJaH\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u9032\u884c\u9060\u7a0b\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u9047\u5230\u6b64\u985e\u932f\u8aa4\u6642\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u6aa2\u67e5 SQL \u67e5\u8a62\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u4e0d\u5728\u905e\u6b78 CTE \u4e2d\u4f7f\u7528\u805a\u5408\u51fd\u6578\u3002<\/li>\n<li>\u4f7f\u7528 SQL \u8a9e\u6cd5\u6aa2\u67e5\u5de5\u5177\uff0c\u5e6b\u52a9\u8b58\u5225\u6f5b\u5728\u7684\u8a9e\u6cd5\u932f\u8aa4\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528\u6578\u64da\u5eab\u7684\u65e5\u8a8c\u529f\u80fd\uff0c\u8ffd\u8e64\u932f\u8aa4\u7684\u5177\u9ad4\u4f86\u6e90\u3002<\/li>\n<li>\u5728\u9032\u884c\u5927\u898f\u6a21\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u5efa\u8b70\u4f7f\u7528\u4e8b\u52d9\u4f86\u4fdd\u8b77\u6578\u64da\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zJCckFPJaH\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u932f\u8aa4\u865f 3575 \u662f\u7531\u65bc\u5728\u905e\u6b78 CTE \u4e2d\u4f7f\u7528\u805a\u5408\u51fd\u6578\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u5c07\u805a\u5408\u64cd\u4f5c\u79fb\u81f3\u5916\u90e8\u67e5\u8a62\u6216\u4f7f\u7528\u81e8\u6642\u8868\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5728\u9032\u884c\u9060\u7a0b\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u9075\u5faa\u826f\u597d\u7684\u7de8\u78bc\u7fd2\u6163\u548c\u932f\u8aa4\u8655\u7406\u6d41\u7a0b\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u958b\u767c\u6548\u7387\u548c\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a MySQL \u932f\u8aa4 3575 (ER_CTE_RECURSIVE_FORBIDS_AGGREGATION) \u7684\u6545\u969c\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u52a9\u60a8\u5feb\u901f\u4fee\u5fa9\u554f\u984c\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-66635","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66635","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=66635"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66635\/revisions"}],"predecessor-version":[{"id":66636,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66635\/revisions\/66636"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}