Is there a way to make an entire MySQL row unique

Question

I have a table in MySQL with 30 columns and thousands of entries.
Is there a way I could make every row unique, that means if a row already exists, I should not be able to e

Answer 1

You need a composite primary key.

A composite primary key tells MySQL that you want your primary key to be a combination of fields.

More info here: Why use multiple columns as primary keys (composite primary key)