I’m new to MySQL Workbench, so i’ve been trying a couple projects and right now i’m trying to create a foreign key (by the Workbench menu), but every time i try to apply it the Workbench says that the code is wrong and i should check my MariaDB manual, but i haven’t installed MariaDB, nor do I know how to mess with it.

this is the code:
ALTER TABLE mercado.produtos ADD INDEXfk_udm_idx (ID_unidadeASC) VISIBLE; ; ALTER TABLEmercado.produtos ADD CONSTRAINTfk_udm FOREIGN KEY (ID_unidade) REFERENCES mercado.udm (udm_ID) ON DELETE NO ACTION ON UPDATE NO ACTION;

And this is the error:

ERROR 1064: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ” at line 2
SQL Statement:
ALTER TABLE mercado.produtos ADD INDEXfk_udm_idx (ID_unidade ASC) VISIBLE

I’ve already tried removing the second ‘;’ but to no avail, it just points to the same error.