Truncate table in Oracle getting errors

Question

I got the problem is when I run following command in Oracle, I encounter the error.

Truncate table mytable;

Errors:

Answer 1

The error message is telling you that there are other table(s) with a foreign key constraint referring to your table.

According to the Oracle docs

You cannot truncate the parent table of an enabled foreign key constraint. You must disable the constraint before truncating the table.

The syntax for disabling a foreign key is:

ALTER TABLE table_name disable CONSTRAINT constraint_name;