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Re: Can a single key have different value assigned to it

by Tux (Abbot)
on Apr 19, 2012 at 09:31 UTC ( #965897=note: print w/replies, xml ) Need Help??


in reply to Can a single key have different value assigned to it

As an alternative, use Text::CSV or Text::CSV_XS and read the whole file in one go:

use Text::CSV_XS; open my $fh, "<", $file or die "$file: $!"; my $csv = Text::CSV_XS->new ({ auto_diag => 1, binary => 1, sep_char = +> "|" }); $csv->column_names (qw( lastname firstname country language )); my $info = $csv->getline_hr_all ($fh);

With your data looking like

Wall|Larry|USA|English Walker|Johnny|Scotland|Scottish

$info (an arrayref: a pointer to a list of hashes) would look like:

[ { country => 'USA', firstname => 'Larry', language => 'English', lastname => 'Wall' }, { country => 'Scotland', firstname => 'Johnny', language => 'Scottish', lastname => 'Walker' } ]

Enjoy, Have FUN! H.Merijn

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[Corion]: Hmmm. I feel a Meditation coming on. I wrote a module, DBIx::PivotQuery, which returns a table-like set of rows (AoA) but some columns are generated from column values, like in an (Excel) pivot table or a ROLLUP command
[Corion]: My current approach for subtotals involves rerunning the given query, with the hint to the user that they should use a temporary table if they want better performance.
[Corion]: But I could create that temporary table in the module and use it for the improved perfomance directly instead.
[Corion]: And the question is, what would be better/preferred ;-)
[Corion]: Hmm - not exactly like the ROLLUP command. Ah well.

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