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Full Discussion: Sort with respect to count
Top Forums UNIX for Dummies Questions & Answers Sort with respect to count Post 302411460 by anchuz on Thursday 8th of April 2010 01:48:24 PM
Old 04-08-2010
Sort with respect to count

Hello!
I have a file with 4 columns. I am trying to have it sort first with respect to the first column, and then with respect to the number of counts (in descending count) in the second column within the same first column identity.

For example:

Input:
1 2 A 1
1 6 B 2
2 5 G 7
1 6 D 4
1 6 F 6
1 0 E 5
2 4 H 8
2 5 I 9
1 2 C 3

The output is to look like:
1 6 B 2
1 6 D 4
1 6 F 6
1 2 A 1
1 2 C 3
1 0 E 5
2 5 G 7
2 5 I 9
2 4 H 8

As you can see:
-Within the first column identity=1, there are 3 counts of '6', 2 counts of '2' and 1 count of '0' in the second column.
-Within the first column identity=2, there are 2 counts of '5' and 1 count of '4' in the second column.
They are both sorted with respect to descending count in the second column.

I have been doing this in excel and it became quite time consuming for me since the number of files to process has started to increase.

Thanks for your help in advance!

Last edited by anchuz; 04-08-2010 at 03:09 PM..
 

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DB2_FIELD_NUM(3)							 1							  DB2_FIELD_NUM(3)

db2_field_num - Returns the position of the named column in a result set

SYNOPSIS
int db2_field_num (resource $stmt, mixed $column) DESCRIPTION
Returns the position of the named column in a result set. 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 0-indexed position of the named column in the result set. If the specified column does not exist in the result set, db2_field_num(3) returns FALSE. SEE ALSO
db2_field_display_size(3), db2_field_name(3), db2_field_precision(3), db2_field_scale(3), db2_field_type(3), db2_field_width(3). PHP Documentation Group DB2_FIELD_NUM(3)
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