MySQL error code
MySQL error 1239
MySQL server error 1239 is ER_WRONG_FK_DEF, reported with SQLSTATE 42000.
Incorrect foreign key definition for '%s': %s
| Error | 1239 |
|---|---|
| Name | ER_WRONG_FK_DEF |
| SQLSTATE | 42000 |
| Group | Server errors |
In other databases
Source: MySQL 8.4 Error Reference