MySQL error code
MySQL error 1304
MySQL server error 1304 is ER_SP_ALREADY_EXISTS, reported with SQLSTATE 42000.
%s %s already exists
| Error | 1304 |
|---|---|
| Name | ER_SP_ALREADY_EXISTS |
| SQLSTATE | 42000 |
| Group | Server errors |
In other databases
Source: MySQL 8.4 Error Reference