MySQL error code
MySQL error 1240
MySQL server error 1240 is ER_KEY_REF_DO_NOT_MATCH_TABLE_REF, reported with SQLSTATE HY000.
Key reference and table reference don't match
| Error | 1240 |
|---|---|
| Name | ER_KEY_REF_DO_NOT_MATCH_TABLE_REF |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference