{"id":177423,"date":"2024-11-08T14:31:17","date_gmt":"2024-11-08T06:31:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177423\/"},"modified":"2024-11-08T14:31:18","modified_gmt":"2024-11-08T06:31:18","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41111-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_invalid_group_func_use%ef%bc%89%e7%84%a1%e6%95%88%e4%bd%bf%e7%94%a8%e7%b5%84%e5%87%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177423\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41111 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_INVALID_GROUP_FUNC_USE\uff09\u7121\u6548\u4f7f\u7528\u7d44\u51fd\u6578"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41111-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_invalid_group_func_use%ef%bc%89%e7%84%a1%e6%95%88%e4%bd%bf%e7%94%a8%e7%b5%84%e5%87%bd-PMUNBoscgq\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41111 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_INVALID_GROUP_FUNC_USE\uff09\u7121\u6548\u4f7f\u7528\u7d44\u51fd\u6578<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa41111\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70baHY000\uff0c\u4e26\u4e14\u986f\u793a\u70ba\u201c\u7121\u6548\u4f7f\u7528\u7d44\u51fd\u6578\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528\u805a\u5408\u51fd\u6578\u6642\uff0c\u7279\u5225\u662f\u5728SELECT\u8a9e\u53e5\u4e2d\u672a\u6b63\u78ba\u4f7f\u7528GROUP BY\u5b50\u53e5\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e6%88%90%e5%9b%a0-PMUNBoscgq\">\u932f\u8aa4\u7684\u6210\u56e0<\/h2>\n<p>MySQL\u4e2d\u7684\u805a\u5408\u51fd\u6578\uff08\u5982SUM\u3001COUNT\u3001AVG\u7b49\uff09\u7528\u65bc\u5c0d\u4e00\u7d44\u6578\u64da\u9032\u884c\u8a08\u7b97\u3002\u7576\u4f60\u5728SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u6240\u6709\u975e\u805a\u5408\u7684\u5217\u90fd\u5728GROUP BY\u5b50\u53e5\u4e2d\u5217\u51fa\u3002\u5426\u5247\uff0cMySQL\u5c07\u7121\u6cd5\u78ba\u5b9a\u5982\u4f55\u5c0d\u9019\u4e9b\u5217\u9032\u884c\u5206\u7d44\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa41111\u7684\u51fa\u73fe\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-PMUNBoscgq\">\u793a\u4f8b<\/h3>\n<pre><code>SELECT name, COUNT(*) \nFROM users \nWHERE age &gt; 18;\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u67e5\u8a62\u4e2d\uff0c\u56e0\u70ba\u6c92\u6709\u4f7f\u7528GROUP BY\u5b50\u53e5\u4f86\u5206\u7d44name\u5217\uff0c\u9019\u5c07\u5c0e\u81f4\u932f\u8aa41111\u3002\u6b63\u78ba\u7684\u5beb\u6cd5\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>SELECT name, COUNT(*) \nFROM users \nWHERE age &gt; 18 \nGROUP BY name;\n<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41111-PMUNBoscgq\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41111<\/h2>\n<p>\u8981\u4fee\u5fa9MySQL\u932f\u8aa41111\uff0c\u958b\u767c\u8005\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5\u805a\u5408\u51fd\u6578\u7684\u4f7f\u7528\uff1a<\/strong>\u78ba\u4fdd\u5728SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u7684\u6240\u6709\u975e\u805a\u5408\u5217\u90fd\u5305\u542b\u5728GROUP BY\u5b50\u53e5\u4e2d\u3002<\/li>\n<li><strong>\u7c21\u5316\u67e5\u8a62\uff1a<\/strong>\u5982\u679c\u67e5\u8a62\u904e\u65bc\u8907\u96dc\uff0c\u8003\u616e\u5c07\u5176\u62c6\u5206\u70ba\u591a\u500b\u7c21\u55ae\u7684\u67e5\u8a62\uff0c\u7136\u5f8c\u518d\u5c07\u7d50\u679c\u5408\u4f75\u3002<\/li>\n<li><strong>\u4f7f\u7528HAVING\u5b50\u53e5\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528HAVING\u5b50\u53e5\u4f86\u904e\u6ffe\u805a\u5408\u7d50\u679c\u53ef\u80fd\u6703\u66f4\u6709\u6548\u3002<\/li>\n<\/ul>\n<h3 id=\"%e9%80%b2%e4%b8%80%e6%ad%a5%e7%9a%84%e7%a4%ba%e4%be%8b-PMUNBoscgq\">\u9032\u4e00\u6b65\u7684\u793a\u4f8b<\/h3>\n<p>\u8003\u616e\u4ee5\u4e0b\u67e5\u8a62\uff0c\u9019\u5c07\u5c0e\u81f4\u932f\u8aa41111\uff1a<\/p>\n<pre><code>SELECT department, AVG(salary) \nFROM employees \nWHERE status = 'active';\n<\/code><\/pre>\n<p>\u9019\u88e1\uff0cdepartment\u5217\u672a\u5728GROUP BY\u4e2d\u5217\u51fa\u3002\u6b63\u78ba\u7684\u67e5\u8a62\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>SELECT department, AVG(salary) \nFROM employees \nWHERE status = 'active' \nGROUP BY department;\n<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-PMUNBoscgq\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u51fa\u73fe\u932f\u8aa41111\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u59cb\u7d42\u6aa2\u67e5GROUP BY\u5b50\u53e5\uff1a<\/strong>\u5728\u4f7f\u7528\u805a\u5408\u51fd\u6578\u6642\uff0c\u78ba\u4fdd\u6240\u6709\u975e\u805a\u5408\u5217\u90fd\u5728GROUP BY\u4e2d\u3002<\/li>\n<li><strong>\u4f7f\u7528SQL\u6a21\u5f0f\uff1a<\/strong>\u8003\u616e\u555f\u7528STRICT\u6a21\u5f0f\uff0c\u9019\u6a23MySQL\u6703\u5728\u767c\u73fe\u4e0d\u6b63\u78ba\u7684\u67e5\u8a62\u6642\u7acb\u5373\u5831\u932f\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u67e5\u8a62\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884c\u67e5\u8a62\u4e4b\u524d\uff0c\u5148\u5728\u958b\u767c\u74b0\u5883\u4e2d\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u5176\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PMUNBoscgq\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41111\uff08SQL\u72c0\u614b\uff1aHY000\uff09\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u6b63\u78ba\u4f7f\u7528\u805a\u5408\u51fd\u6578\u548cGROUP BY\u5b50\u53e5\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u67e5\u8a62\u4e26\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u4e26\u907f\u514d\u672a\u4f86\u7684\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6d41\u66a2\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41111\uff08HY000\uff09\uff0c\u89e3\u6c7a\u7121\u6548\u4f7f\u7528\u7d44\u51fd\u6578\u7684\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u67e5\u8a62\u6548\u7387\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-177423","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177423","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=177423"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177423\/revisions"}],"predecessor-version":[{"id":177424,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177423\/revisions\/177424"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}