When to use $sth->fetchrow_hashref, $sth->fetchrow_arrayref and $sth->fetchrow_array?

Question

I know that:

• $sth->fetchrow_hashref returns a hashref of the fetched row from database,
• $sth->fetchrow_arrayref returns an

Answer 1

In general, I use fetchrow_hashref (I get around two columns with the same name issue by using alias in the SQL), but I fall back to fetch (AKA fetchrow_arrayref) if I need it to be faster. I believe that fetchrow_array is there for people who don't know how to work with references.