I haven't used this module before, so am not totally familiar with this method, but does this work?

my %data;
while ( my $result = $sth->fetchrow() ) {
    $data{$result} = 1;
}

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In reply to Re^3: How to store the data fetched from the database in perl by frozenwithjoy
in thread How to store the data fetched from the database in perl by rajsai28

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