{"id":66763,"date":"2024-10-14T20:25:17","date_gmt":"2024-10-14T12:25:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66763\/"},"modified":"2024-10-14T20:25:17","modified_gmt":"2024-10-14T12:25:17","slug":"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3769%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_default_val_generated_function_is_not_allowed%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66763\/","title":{"rendered":"MySQL \u932f\u8aa4\u865f\uff1a3769\uff1b\u7b26\u865f\uff1aER_DEFAULT_VAL_GENERATED_FUNCTION_IS_NOT_ALLOWED\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%9a3769%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_default_val_generated_function_is_not_allowed%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c-YTaJMlORvT\">MySQL \u932f\u8aa4\u865f\uff1a3769\uff1b\u7b26\u865f\uff1aER_DEFAULT_VAL_GENERATED_FUNCTION_IS_NOT_ALLOWED\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 3769\uff0c\u7b26\u865f\u70ba ER_DEFAULT_VAL_GENERATED_FUNCTION_IS_NOT_ALLOWED\uff0cSQLSTATE \u70ba HY000\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u70ba\u67d0\u500b\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u6642\uff0c\u8a72\u9ed8\u8a8d\u503c\u4f7f\u7528\u4e86\u4e0d\u88ab\u5141\u8a31\u7684\u751f\u6210\u51fd\u6578\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-YTaJMlORvT\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL \u4e2d\u7684\u751f\u6210\u5217\uff08Generated Columns\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u5217\uff0c\u5176\u503c\u662f\u57fa\u65bc\u5176\u4ed6\u5217\u7684\u8a08\u7b97\u7d50\u679c\u3002\u7576\u4f60\u5617\u8a66\u70ba\u9019\u4e9b\u751f\u6210\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u6642\uff0cMySQL \u6703\u5831\u932f 3769\u3002\u9019\u662f\u56e0\u70ba\u751f\u6210\u5217\u7684\u503c\u662f\u52d5\u614b\u8a08\u7b97\u7684\uff0c\u800c\u4e0d\u662f\u975c\u614b\u5b58\u5132\u7684\uff0c\u56e0\u6b64\u4e0d\u5141\u8a31\u70ba\u5176\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u3002<\/p>\n<p>\u5177\u9ad4\u4f86\u8aaa\uff0c\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5728\u5275\u5efa\u8868\u6642\uff0c\u70ba\u751f\u6210\u5217\u8a2d\u7f6e\u4e86\u9ed8\u8a8d\u503c\u3002<\/li>\n<li>\u5728 ALTER TABLE \u64cd\u4f5c\u4e2d\uff0c\u5617\u8a66\u70ba\u5df2\u5b58\u5728\u7684\u751f\u6210\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%a4%ba%e4%be%8b-YTaJMlORvT\">\u932f\u8aa4\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u89f8\u767c\u9019\u500b\u932f\u8aa4\uff1a<\/p>\n<pre><code>CREATE TABLE example (\n    id INT PRIMARY KEY,\n    value INT,\n    generated_value INT GENERATED ALWAYS AS (value * 2) STORED DEFAULT 0\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u5617\u8a66\u70ba\u751f\u6210\u5217 <code>generated_value<\/code> \u8a2d\u7f6e\u9ed8\u8a8d\u503c 0\uff0c\u9019\u5c07\u5c0e\u81f4\u932f\u8aa4 3769 \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-YTaJMlORvT\">\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u958b\u767c\u8005\u9700\u8981\u79fb\u9664\u5c0d\u751f\u6210\u5217\u7684\u9ed8\u8a8d\u503c\u8a2d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4fee\u5fa9\u7684\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5728\u5275\u5efa\u8868\u6642\uff0c\u4e0d\u8981\u70ba\u751f\u6210\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u3002<\/li>\n<li>\u5982\u679c\u5df2\u7d93\u5275\u5efa\u4e86\u8868\uff0c\u5247\u9700\u8981\u4f7f\u7528 ALTER TABLE \u8a9e\u53e5\u4f86\u4fee\u6539\u751f\u6210\u5217\u7684\u5b9a\u7fa9\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%bf%ae%e5%be%a9%e7%a4%ba%e4%be%8b-YTaJMlORvT\">\u4fee\u5fa9\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4fee\u5fa9\u4e0a\u8ff0\u932f\u8aa4\u7684\u6b63\u78ba\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE example (\n    id INT PRIMARY KEY,\n    value INT,\n    generated_value INT GENERATED ALWAYS AS (value * 2) STORED\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4fee\u6b63\u5f8c\u7684\u4f8b\u5b50\u4e2d\uff0c\u751f\u6210\u5217 <code>generated_value<\/code> \u4e0d\u518d\u6709\u9ed8\u8a8d\u503c\uff0c\u9019\u6a23\u5c31\u4e0d\u6703\u518d\u89f8\u767c\u932f\u8aa4 3769\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-YTaJMlORvT\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u9032\u884c\u9060\u7a0b\u8655\u7406\u6642\uff0c\u958b\u767c\u8005\u61c9\u8a72\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7248\u672c\u652f\u6301\u751f\u6210\u5217\u529f\u80fd\uff0c\u56e0\u70ba\u4e0d\u540c\u7248\u672c\u7684 MySQL \u5c0d\u6b64\u529f\u80fd\u7684\u652f\u6301\u7a0b\u5ea6\u53ef\u80fd\u6709\u6240\u4e0d\u540c\u3002<\/li>\n<li>\u5728\u9032\u884c\u4efb\u4f55\u7d50\u69cb\u8b8a\u66f4\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u5de5\u5177\u548c\u547d\u4ee4\u884c\u754c\u9762\u4f86\u57f7\u884c SQL \u8a9e\u53e5\uff0c\u78ba\u4fdd\u64cd\u4f5c\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-YTaJMlORvT\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u932f\u8aa4\u865f 3769 \u662f\u7531\u65bc\u4e0d\u7576\u8a2d\u7f6e\u751f\u6210\u5217\u7684\u9ed8\u8a8d\u503c\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6b63\u78ba\u7684\u8868\u7d50\u69cb\u8a2d\u8a08\u548c\u9069\u7576\u7684 SQL \u8a9e\u53e5\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u6b64\u985e\u932f\u8aa4\u3002\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u4fdd\u6301\u8b39\u614e\u548c\u7d30\u5fc3\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a MySQL \u932f\u8aa4\u865f 3769 \u7684\u6545\u969c\uff0c\u4e86\u89e3 ER_DEFAULT_VAL_GENERATED_FUNCTION_IS_NOT_ALLOWED \u932f\u8aa4\u53ca\u5176\u9060\u7a0b\u8655\u7406\u65b9\u6cd5\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-66763","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66763","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=66763"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66763\/revisions"}],"predecessor-version":[{"id":66764,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66763\/revisions\/66764"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}