Web21 de may. de 2012 · Cannot add or update a child row: a foreign key constraint fails (`mydb`.`leasing`, CONSTRAINT `fk_Leasing_Lizenz1` FOREIGN KEY (`Lizenz_Lizenz_ID`, `Lizenz_PerKu_PerKu_ID`, `Lizenz_Produkt_Produkt_ID`) REFERENCES ... REFERENCES `mydb`.`FiKu` (`FiKu_ID` ) ON DELETE NO ACTION ON UPDATE NO … WebUsei esse comando: ALTER TABLE `vagas` ADD CONSTRAINT `vagas_fkcidade` FOREIGN KEY (`cidade`) REFERENCES `cidades` (`id`) ON DELETE NO ACTION ON UPDATE CASCADE; Mas acontece o seguinte erro: #1452 - Cannot add or update a child row: a foreign key constraint fails ( #sql-de8_d8, CONSTRAINT vagas_fkcidade …
MySQL 创建外键 报错 1452 - Cannot add or update a child row: a ...
Web21 de mar. de 2024 · 1452 - Cannot add or update a child row: a foreign key constraint fails. 背景. navicat创建外键时报错 关于navicat创建外键具体步骤,参见此文:navicat 数据表添加外键. 原因. 两张表的数据不匹配(参见下图) 例子: myorder表中userId字段是外键,关联user表中的userId字段。 the children of ash and elm
[mysql]Cannot add or update a child row: a foreign key constraint fails ...
Web13 de may. de 2024 · Fatal error: Uncaught mysqli_sql_exception: Cannot add or update a child row: a foreign key constraint fails (curvas_de_papel_.usuarios_, CONSTRAINT usuarios__ibfk_1 FOREIGN KEY (rol_id_) REFERENCES roles_ (id_rol_) ON UPDATE CASCADE) in C:\xampp\htdocs\papeleria\Views\CRUD\crear\añadirusuario.view.php:27 … Web21 de jun. de 2024 · Cannot add or update a child row: a foreign key.. 解决 navicat中 1452 错误 ,外键无法更新问题 ERROR 1452 (23000): Cannot add or update a child … Webdjango admin报错IntegrityError:'Cannot add or update a child row: a foreign key constraint fails' 如果在使用Django Admin后台添加用户时出现外键报错,这时候需要在setting … tax exempt city of chicago