how to find common names from two input files

sanjay kumar tripathi · New User Joined: 08 Jul 2008 Posts: 11 Location: chennai

how to find common names from two input files having n names and write it into another output file?

ParagChouguley · Posted: Tue Jul 08, 2008 6:15 pm

Sort both files on Name field

Read file 1
Read file 2

If Name_file1 = Name_file2
Perform below PARA until endofboth the files

PARA:
Write to o/p file
Read file 1
Read file 2
End-if
IF Name_file1 > Name_file2
Read file 2
End-if

IF Name_file1 < Name_file2
Read file 1
End-if

ParagChouguley · Posted: Tue Jul 08, 2008 6:16 pm

Sorry a small mistake in earlier post :

It should be like:

Sort both files on Name field

Read file 1
Read file 2

Perform below PARA until endofboth the files

PARA:

If Name_file1 = Name_file2
Write to o/p file
Read file 1
Read file 2
End-if
IF Name_file1 > Name_file2
Read file 2
End-if

IF Name_file1 < Name_file2
Read file 1
End-if

dick scherrer · Posted: Tue Jul 08, 2008 8:35 pm

Hello sanjay and wecome to the forums,

Anuj Dhawan · Posted: Wed Jul 09, 2008 12:08 pm

Hi,

As Dick has mentioned, providing your expectations with sample input/output is always good.

However, so far it seems a standard "file-matching" problem; if so, there is a sticky in the COBOL forum for such a COBOL program. With a lilttle modification you should be ready to go, here is the link...

ibmmainframes.com/viewtopic.php?t=22649

If this is not what you are searching for, please clarify more.