{"id":178488,"date":"2024-11-08T18:23:23","date_gmt":"2024-11-08T10:23:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178488\/"},"modified":"2024-11-08T18:23:23","modified_gmt":"2024-11-08T10:23:23","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41348-sqlstate-hy000-er_view_select_derived-%e8%a7%86%e5%9b%be%e7%9a%84select%e8%af%ad%e5%8f%a5%e4%b8%ad%e5%8c%85%e5%90%abfrom%e5%ad%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178488\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41348 &#8211; SQLSTATE: HY000 (ER_VIEW_SELECT_DERIVED) \u89c6\u56fe\u7684SELECT\u8bed\u53e5\u4e2d\u5305\u542bFROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8be2"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41348-sqlstate-hy000-er_view_select_derived-%e8%a7%86%e5%9b%be%e7%9a%84select%e8%af%ad%e5%8f%a5%e4%b8%ad%e5%8c%85%e5%90%abfrom%e5%ad%90-PvHrxhjixA\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41348 &#8211; SQLSTATE: HY000 (ER_VIEW_SELECT_DERIVED) \u89c6\u56fe\u7684SELECT\u8bed\u53e5\u4e2d\u5305\u542bFROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8be2<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41348\uff0c\u8a72\u932f\u8aa4\u7684\u4ee3\u78bc\u70baSQLSTATE: HY000 (ER_VIEW_SELECT_DERIVED)\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u5305\u542bFROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8a62\u6642\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-PvHrxhjixA\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>MySQL\u7684\u8996\u5716\u662f\u4e00\u7a2e\u865b\u64ec\u8868\uff0c\u5b83\u662f\u57fa\u65bcSELECT\u67e5\u8a62\u7684\u7d50\u679c\u96c6\u3002\u7576\u4f60\u5275\u5efa\u4e00\u500b\u8996\u5716\u6642\uff0cMySQL\u6703\u5c07\u8a72\u67e5\u8a62\u7684\u7d50\u69cb\u4fdd\u5b58\u4e0b\u4f86\uff0c\u4e26\u5728\u6bcf\u6b21\u8a2a\u554f\u8996\u5716\u6642\u57f7\u884c\u8a72\u67e5\u8a62\u3002\u7136\u800c\uff0c\u6839\u64daMySQL\u7684\u8a2d\u8a08\uff0c\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u4e0d\u5141\u8a31\u5305\u542bFROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8a62\u3002\u9019\u662f\u56e0\u70baMySQL\u5728\u8655\u7406\u8996\u5716\u6642\uff0c\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u9019\u4e9b\u5b50\u67e5\u8a62\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa41348\u7684\u51fa\u73fe\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-PvHrxhjixA\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4ee5\u4e0b\u7684\u8868\u683c\uff1a<\/p>\n<pre><code>CREATE TABLE employees (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    department_id INT\n);\n\nCREATE TABLE departments (\n    id INT PRIMARY KEY,\n    department_name VARCHAR(100)\n);\n<\/code><\/pre>\n<p>\u5982\u679c\u6211\u5011\u5617\u8a66\u5275\u5efa\u4e00\u500b\u8996\u5716\uff0c\u4e26\u5728SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u5b50\u67e5\u8a62\uff0c\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE VIEW employee_departments AS\nSELECT e.name, \n       (SELECT d.department_name FROM departments d WHERE d.id = e.department_id) AS department_name\nFROM employees e;\n<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u4ee3\u78bc\u6642\uff0c\u5c07\u6703\u51fa\u73fe\u932f\u8aa41348\uff0c\u56e0\u70ba\u5728\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u4e86FROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-PvHrxhjixA\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u6211\u5011\u9700\u8981\u907f\u514d\u5728\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u5b50\u67e5\u8a62\u3002\u53ef\u4ee5\u901a\u904eJOIN\u64cd\u4f5c\u4f86\u9054\u5230\u76f8\u540c\u7684\u6548\u679c\u3002\u4ee5\u4e0b\u662f\u4fee\u6b63\u5f8c\u7684\u4ee3\u78bc\uff1a<\/p>\n<pre><code>CREATE VIEW employee_departments AS\nSELECT e.name, d.department_name\nFROM employees e\nJOIN departments d ON e.department_id = d.id;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4fee\u6b63\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528JOIN\u4f86\u9023\u63a5employees\u548cdepartments\u8868\uff0c\u5f9e\u800c\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\uff0c\u800c\u4e0d\u4f7f\u7528\u5b50\u67e5\u8a62\u3002\u9019\u6a23\u5c31\u53ef\u4ee5\u6210\u529f\u5275\u5efa\u8996\u5716\uff0c\u4e26\u907f\u514d\u932f\u8aa41348\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PvHrxhjixA\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41348 (SQLSTATE: HY000) \u901a\u5e38\u662f\u7531\u65bc\u5728\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u4f7f\u7528\u4e86FROM\u5b50\u53e5\u4e2d\u7684\u5b50\u67e5\u8a62\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4f7f\u7528JOIN\u64cd\u4f5c\u4f86\u66ff\u4ee3\u5b50\u67e5\u8a62\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u907f\u514d\u932f\u8aa4\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u6027\u80fd\u548c\u53ef\u8b80\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\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\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\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>\u4fee\u5fa9MySQL\u932f\u8aa41348\u7684\u65b9\u6cd5\uff0c\u89e3\u91cb\u5982\u4f55\u8655\u7406\u8996\u5716\u7684SELECT\u8a9e\u53e5\u4e2d\u5305\u542bFROM\u5b50\u53e5\u7684\u5b50\u67e5\u8a62\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-178488","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178488","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=178488"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178488\/revisions"}],"predecessor-version":[{"id":178489,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178488\/revisions\/178489"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}