foreach my $record (@filedata)
{
    my @fields = split /,/, $record;
    my $placeholders = join ',', (('?') x @fields);

    my $sql = <<"END_SQL";
INSERT INTO $table
VALUES ($placeholders)
END_SQL

    my $sth = $dbh->prepare_cached($sql)
        || die "Could not prepare '$sql'\n";

    $sth->execute(@fields)
        || die "Could not execute '$sql'\n";

    $sth->finish;
}
[download]

That's the first bit - use join and check the return values.

However, $record should be an arrayref, not a string. Which would mean that the split disappears. But, that's further back up the chain.

------
We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.