On 5/19/05, Scott Taylor wrote: > > ... to pump out lines of data to my SQL statement. > > I'll need to end up with something like: > qw($vid,$eid,$event,$desc > ,$date,$mid_desc,$mid_val > ,$pid_desc,$pid_val,$min,$max,$val) > > for each line of data. (or whatever works) > > I think I'm just lost at the nested hash (if that's what it's called) > thingy, and how to work with it. :| >
It's a data structure, consisting of references to hashes and to arrays. To begin with, start by reading tutorials such as: http://perldoc.perl.org/perlreftut.html - references tutorial http://perldoc.perl.org/perldsc.html - data structures cookbook Once you've mastered the basics, you should be able to understand these two statements: $vid = $ref->{'vid'}; $pid_val = $ref->{'j1587'}->{'data'}->[0]->{'pid'}->{'val'}; These are just examples. To get at all the data in an organized way, you'll need to wrap calls such as the above in loops-within-loops, depending on how deep your data structure is. Of course, after a while you might get tired of manually looping over your data. In that case I suggest you start looking at XML modules that provide OO access methods to your data, such as XML::SimpleObject : http://search.cpan.org/dist/XML-SimpleObject/SimpleObject.pm That's just a suggestion, there are of course many others out there :-) HTH, -- Offer Kaye -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
