matching multiple values in awk


 
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Old 06-12-2009
matching multiple values in awk

How will you change the 5th column in the data file with the value in the second column in the error_correction.txt file.
You have to match an extra variable, column 3 of the error_correction file with column 6 of the data.txt file.


data.txt:

vgr,bugatti veron,,3.5,Maybe,6,.......,ax2,....
vgr,lamborgini,,3.5,nos,6,.......,gd2....
abc,bugatti veron,,3.5,nos,,6,.......,as3.......
.
.
.
.


error_correction.txt:
VenoM,Venom,am1
Venom,VENOM,ax2
nos,NOS,ba1
nos,N2O,gd2
nos,n2o,as3
..
.
.
.


How would you do this using awk?
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DB2_FIELD_DISPLAY_SIZE(3)						 1						 DB2_FIELD_DISPLAY_SIZE(3)

db2_field_display_size - Returns the maximum number of bytes required to display a column

SYNOPSIS
int db2_field_display_size (resource $stmt, mixed $column) DESCRIPTION
Returns the maximum number of bytes required to display a 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 value with the maximum number of bytes required to display the specified column. If the column does not exist in the result set, db2_field_display_size(3) returns FALSE. SEE ALSO
db2_field_name(3), db2_field_num(3), db2_field_precision(3), db2_field_scale(3), db2_field_type(3), db2_field_width(3). PHP Documentation Group DB2_FIELD_DISPLAY_SIZE(3)