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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] Can you modify a file with data from another file?

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[SOLVED] Can you modify a file with data from another file?
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webmeister
Guru
posted
Just wondering - can you modify a file using data from another file? If that is possible, how is it done? I'm interested in comparing the data of one file against data in a second file and then deleting records from the second file if I find a match.

And, yes, this question somewhat dovetails into my earlier question about match logic.

Thanks you so much!

This message has been edited. Last edited by: webmeister,


Mainframe FOCUS 7.0
VM/CMS and MVS/TSO
 
Posts: 250 | Registered: January 14, 2008Report This Post
Danny-SRL
Virtuoso
posted Hide Post
Webmeister,
You can do that using either the MODIFY or MAINTAIN commands.
The file that you want to modify must be either a FOCUS file or a relational table.
The input file is a flat sequential file.
I suggest you read about either in the manual.


Daniel
In Focus since 1982
wf 8.202M/Win10/IIS/SSA - WrapApp Front End for WF

 
Posts: 1980 | Location: Tel Aviv, Israel | Registered: March 23, 2006Report This Post
Darin Lee
Virtuoso
posted Hide Post
You could probably join the files together, creating a file of the records that exist in both OR it also may be just as easy to use MATCH logic to create your hold file with OLD-AND-NEW operator. Then use MODIFY code to delete from the second based on records in your hold.

You're getting into the ETL realm, but what you're wanting to do IS possible using straight WF.


Regards,

Darin


In FOCUS since 1991
WF Server: 7.7.04 on Linux and Z/OS, ReportCaster, Self-Service, MRE, Java, Flex
Data: DB2/UDB, Adabas, SQL Server Output: HTML,PDF,EXL2K/07, PS, AHTML, Flex
WF Client: 77 on Linux w/Tomcat
 
Posts: 2298 | Location: Salt Lake City, Utah | Registered: February 02, 2007Report This Post
webmeister
Guru
posted Hide Post
Daniel and Darin,

Thank you for replying - I appreciate it very much! Those were somewhat my thoughts also...I'm going to play around with a combination of MATCH and MODIFY logic as suggested ans see what I come up with.


Mainframe FOCUS 7.0
VM/CMS and MVS/TSO
 
Posts: 250 | Registered: January 14, 2008Report This Post
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