MySQL error code
MySQL error 1110
MySQL server error 1110 is ER_FIELD_SPECIFIED_TWICE, reported with SQLSTATE 42000.
Column '%s' specified twice
| Error | 1110 |
|---|---|
| Name | ER_FIELD_SPECIFIED_TWICE |
| SQLSTATE | 42000 |
| Group | Server errors |
In other databases
Source: MySQL 8.4 Error Reference