Focal Point
Using MODIFY FILE match on multiple keys [CLOSED]

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August 06, 2014, 06:46 PM
BobV
Using MODIFY FILE match on multiple keys [CLOSED]
Is it possible to use MODIFY FILE and match on multiple keys?

Like this:
MODIFY FILE M1247FF
FIXFORM FROM M1247FIN
MATCH CUST_ID ACCT_ID
ON NOMATCH INCLUDE
DATA ON M1247FIN
END

Basically, wherever the CUST_ID or the ACCT_ID is in the source file (M1247FIN), I want it rejected and not appended in file being modified (M1247FF).

thanks

Bob

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


WF (App Studio) 8.2.01m / Windows
Mainframe FOCUS 8
August 06, 2014, 07:10 PM
Waz
Yes, but it very much depends on the source table type and structure.


Waz...

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August 07, 2014, 08:38 AM
George Patton
I assume that what you mean is that if a record already exists in the file being modified - M1247FF - then you don't want to process any matching incoming records from the HOLD file.

The following will accomplish that.
quote:

MODIFY FILE M1247FF
FIXFORM FROM M1247FIN
MATCH CUST_ID ACCT_ID
ON MATCH REJECT
ON NOMATCH INCLUDE
DATA ON M1247FIN
END


However you say "wherever the CUST_ID or the ACCT_ID is in the source file (M1247FIN), I want it rejected". The tricky part here is the OR in your statement. Right now you are matching on two keys. If both of those are in the same segment I don't think you can easily deal with the OR - both have to be a match to the incoming data to get the REJECT to work.

However, as Waz hints, if the CUST_ID is in a top segment and the ACCOUNT_ID in a lower segment (or vice versa) than you can MATCH them independently and INCLUDE or REJECT appropriately.


WebFOCUS 7.7.05 Windows, Linux, DB2, IBM Lotus Notes, Firebird, Lotus Symphony/OpenOffice. Outputs PDF, Excel 2007 (for OpenOffice integration), WP
August 07, 2014, 10:01 AM
BobV
George - Most important, I don't want the ACCT_ID to be included if matched. But it is possible (albeit unlikely) that a CUST_ID could change for an ACCT_ID thereby creating a scenario where that customer ends up in my universe of accounts after other suppressions. I did not see a code sample from Waz, so I'm not sure if there is a solution.

The source is a flat file. I suppose I could create a two step process and join that hold first on CUST_ID, suppress and hold, then join on ACCT_ID, suppress and hold. Then append to my final DB2.

thanks

Bob


WF (App Studio) 8.2.01m / Windows
Mainframe FOCUS 8
August 07, 2014, 12:37 PM
George Patton
Are you willing to gamble that the CUST_ID and ACCT_ID will forever be linked?

If it's only the ACCT_ID that you want to act on then create your M1274FF.MAS with a single key, namely ACCT_ID. Make CUST_ID a normal, non-key field.

Reporting from a flat file is not a problem - I assume you have a MFD / Synonym already created for that.

Probably the easiest thing to do is create a HOLD file from the contents of your flat file. Then the MODIFY becomes a piece of cake:
TABLE FILE M1247FIN
PRINT field list
BY ACCT_ID
ON TABLE HOLD
END

MODIFY FILE M1247FF
FIXFORM FROM HOLD
MATCH ACCT_ID
ON MATCH REJECT
ON NOMATCH INCLUDE
DATA ON HOLD
END


If you do it this way you don't have to worry about specifying the fieldname and length for each item in the FIXFORM command. The HOLD file will have everything sequenced the way you want and will create a temporary synonym that contains the field lengths to be used in the MODIFY. It might be possible to do this directly from the flat file, but I've never tried it in nearly 30 years worth of MODIFYs.

This message has been edited. Last edited by: George Patton,


WebFOCUS 7.7.05 Windows, Linux, DB2, IBM Lotus Notes, Firebird, Lotus Symphony/OpenOffice. Outputs PDF, Excel 2007 (for OpenOffice integration), WP
August 10, 2014, 02:46 PM
Danny-SRL
Bob,
What is the structure of M1247FF?
I gather it is a DB2 table. Are CUST_ID and ACCT_ID defined as KEYS?


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

August 11, 2014, 10:47 AM
BobV
Danny,
yes, M1247FF is a DB2. Source is a flat file. Only CUST_ID is keyed.


WF (App Studio) 8.2.01m / Windows
Mainframe FOCUS 8
August 12, 2014, 03:32 AM
Danny-SRL
Are there multiple records having the same CUST_ID ?


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

August 12, 2014, 09:44 AM
BobV
It's possible to have multiple CUST_ID for different ACCT_IDs. Not likely, but possible.


WF (App Studio) 8.2.01m / Windows
Mainframe FOCUS 8
August 13, 2014, 12:10 PM
j.gross
In MODIFY on a FOCUS file, matching on non-key fields is supported. Not sure whether that carries over to relational datasources.
August 13, 2014, 05:22 PM
Waz
From what I've seen, you can match on any field in a relational DB, but I think you need to have a custom master with the match fields first.


Waz...

Prod:WebFOCUS 7.6.10/8.1.04Upgrade:WebFOCUS 8.2.06OS:LinuxOutputs:HTML, PDF, Excel, PPT
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