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MySQL

connect

    my $dbh = DBI->connect(
        qq[DBI:mysql:database=$self->{cfg}->{MYSQL}->{db};host=$self->{cfg}->{MYSQL}->{host};port=$self->{cfg}->{MYSQL}->{port}],
        $self->{cfg}->{MYSQL}->{username},
        $self->{cfg}->{MYSQL}->{password},
        {   RaiseError             => 1,
            PrintWarn              => 0,
            ShowErrorStatement     => 1,
            mysql_auto_reconnect   => 1,
            mysql_enable_utf8mb4   => 1,
            mysql_multi_statements => 1,
        }
    );

create table

    CREATE TABLE IF NOT EXISTS `table` (
        `id` VARCHAR(20) NOT NULL,
        PRIMARY KEY (`player_id`)
    ) DEFAULT CHARSET=utf8mb4;