标签： a foreign key constraint fails

添加外键约束时报错： SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails 。

Artisan 命令 / Laravel / Laravel 8 / MySQL / MySQL 5.7 / Web应用开发 / Web框架 / 数据库

2022/01/19

添加外键约束时报错： SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails

1、添加外键约束时报错： SQLSTATE[23000]: Inte...