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

As mentioned by the error message, you cannot truncate a table that is referenced by enabled foreign keys. If you really want to use the truncate DDL command, disable the foreign key constraint first, run the truncate command, and enable it back.

Reference: Difference between TRUNCATE, DELETE and DROP commands