Beefy Boxes and Bandwidth Generously Provided by pair Networks httptech
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

How do I retrieve specific column values from a table of records?

( #16960=categorized question: print w/ replies, xml ) Need Help??
Contributed by Anonymous Monk on Jun 08, 2000 at 01:05 UTC
Q&A  > regular expressions


Description:

The file is in the form of records and columns. I want to retrieve values only for a specific coloumn.How do I do that? EX:
name address phone city chang 12, annie road 201-243-6751 newark ming 13,dgadadgagd 62839871273 trenton gigi 14,gasdha 982318791 wilmingto
I want to retrive values for phone and address columns only.

Answer: How do I retrieve specific column values from a table of records?
contributed by le

It'd be easy if your file had a unique data seperator, like ";" or maybe "|". Then you could split() the rows on that seperator.

open (FILE, "data.txt") or die $!; while(<FILE>) { @array = split(/;/); print $array[1], $array[2]; } close(FILE);
Looks like the original data was tab-separated. split("\t") would work there. -- Ed.
Answer: How do I retrieve specific column values from a table of records?
contributed by BBQ

Please check out the Open Flat File node.
I hope that helps.

Please (register and) log in if you wish to add an answer



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • 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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others scrutinizing the Monastery: (5)
    As of 2014-04-21 04:56 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      April first is:







      Results (490 votes), past polls