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View Full Version : fetchrow_hashref question



bazz
12-08-2009, 10:09 PM
Hi,

Having queried my db and running the loop as shown below, I am confused about why data isn't seemingly accessible in the way it would be stored in a hash.

when I want to output a 'key' and beside it, all its 'values', I get the 'key' outputting each time a value is outputted, like this.



double 2010-01-01 - 2010-03-31
double 2010-04-01 - 2010-09-30

when it should be (I want it to be),



double 2010-01-01 - 2010-03-31
2010-04-01 - 2010-09-30


This is how I get the data from the query and I thought by getting a hashref, it would work as described.


while ( $file_data = $sth->fetchrow_hashref) {
my $product_name = $file_data->{product_name};
my $room_type = $file_data->{room_type};
my $start_date = $file_data->{start_date};
my $end_date=$file_data->{end_date};
my $currency = $file_data->{currency};
my $tariff = $file_data->{tariff};
}


But I wonder if I should get it in a fetchrow_array and then build a hash for processing. And if this (above), is the correct way to get the data, why do I then need to build the hash?

What am I not making sense of?

Dumper shows me the hashref output so should I make a hash of the hashes like this?



$hash{$room_type}{$start_date}{$end_date}=$tariffs;



or am I doing something in perl, which mysql/DBI can do better?

bazz



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