Eternal Night

Tagged: REFERENCES

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 。 0

Database / Web Framework / MySQL / Laravel / MySQL 5.7 / Artisan Command / Laravel 8 / Web Application Development

Error when adding foreign key constraints: sqlstate[23000]: Integrity Constraint Violation: 1452 Cannot add or update a child row: A foreign key constraint fails

浏览量： 2 1. Error when adding foreign key constraints: sqlstate[23000]: Integrity Constraint Violation: 1452 cannot add or update a child row: a foreign key constraint fails . as shown in Figure 1 2. Analyze...