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Full Discussion: How to extract one column from csv file in perl?
Top Forums UNIX for Dummies Questions & Answers How to extract one column from csv file in perl? Post 302474951 by kvth on Friday 26th of November 2010 04:44:31 AM
Old 11-26-2010
How to extract one column from csv file in perl?
Hi everyone,
i am new to perl programming, i have a problem in extracting single column from csv file. the column is the 20th column,
please help me..

at present i use this code

Code:
 
#!C:/perl/bin
use warnings;
use strict;
my $file1 = $ARGV[0];
open FILE1, "<$file1"
    or die "Can't open $file1: $!\n";
    
    my #found;
    my $period;
    
    while ( <FILE1> ) {
        
            ### Remove the newline that acts as a record delimiter
            chop;
            
            ### Break up the record data into separate fields
          
            ( $period) = /^[.*,.*{19,}].*,/  
            #( $name, $location, $mapref, $type, $description ) =
}

 

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LEARN ABOUT PHP

db2_field_width

DB2_FIELD_WIDTH(3)							 1							DB2_FIELD_WIDTH(3)

db2_field_width - Returns the width of the current value of the indicated column in a result set

SYNOPSIS

       int db2_field_width (resource  $stmt, mixed  $column)

DESCRIPTION

	Returns the width of the current value of the indicated column in a result set. This is the maximum width of the column for a fixed-length
       data type, or the actual width of the column for a variable-length data type.

PARAMETERS

	      o $stmt
		- Specifies a statement resource containing a result set.

	      o $column
		- Specifies the column in the result set. This can either be an integer representing the 0-indexed position of the  column,  or  a
		string containing the name of the column.

RETURN VALUES

	Returns  an  integer  containing  the width of the specified character or binary data type column in a result set. If the specified column
       does not exist in the result set, db2_field_width(3) returns FALSE.

SEE ALSO

       db2_field_display_size(3), db2_field_name(3), db2_field_num(3), db2_field_precision(3), db2_field_scale(3), db2_field_type(3).

PHP Documentation Group 													DB2_FIELD_WIDTH(3)
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