Found browsing randomly, Anonymous asked months ago:
the sql statement can return multiple rows. can you help?

@list_of _teamdata = [][];

[download]

any suggesions?? </code>

Among other problems, it appears that he/she couldn't clearly visualize the structure of the data being created by the assignment to what DBI returned. I wonder if Data::Dumper is what Anonymous needed, to see how the data should be structured, in order to access it as he/she seemed to be trying to do ? 

#!/usr/bin/perl -w
use strict;
use Data::Dumper;

my @list_of_teamdata;

my $i = 0;


# Anonymous seems to want to coerce the data into a 
# LoL structure similar to this

for (['game1',['lakers'   ,'96'   ],['blazers',  '95'    ]],
     ['game1',['bulls'    ,'100'  ],['lakers' ,  '107'   ]],
     ['game1',['mavericks','90'   ],['bulls'  ,  '86'    ]],
     ['game2',['bulls'    ,'90'   ],['lakers' ,  '88'    ]],){

  # And then put that into an array,
  # (although hashes of lists keyed on 'round' in a hash 
  # keyed on 'year' might be more useful)
  $list_of_teamdata[$i++] = $_;

}

# In such a structure, the data could be accessed this (ugly) way.
for (0..$#list_of_teamdata){
                                              #for each game in the li
+st
  print "$list_of_teamdata[$_][0]:\t",        #print round
        "$list_of_teamdata[$_][1]->[0]: ",    #get hometeam 
        "$list_of_teamdata[$_][1]->[1]\t",    #and scores
        "$list_of_teamdata[$_][2]->[0]: ",    #get visitor 
        "$list_of_teamdata[$_][2]->[1]\n\n";  #and scores  

}

# but he/she may be equally as unclear about the data's structure
#                           as he/she was about how to create the 
#                           structure needed
# that's why Data::Dumper is needed;

print Dumper([@list_of_teamdata]);

[download]
mkmcconn

In reply to Re: more dbi issues by mkmcconn
in thread more dbi issues by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.