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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] How to join several files

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[SOLVED] How to join several files
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webmeister
Guru
posted
What is the format for joining several files at once? I know how to do a simple one file join to another file, but how would you join field A in File 1 to Field B in file 2 and to Field C in file 3 and to Field in file 4?

I looked in my FOCUS manuals, but could only find simple joins, plus I tried searching on the net.

Hopefully, someone will be able to help...thanks in advance!

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
FrankDutch
Virtuoso
posted Hide Post
How would you do that in SQL?

I think that can't be done either, if you can do it on the database side and create a view. Then create a master on the view and build your report directly on that master.

What you can do is a chained join or a join like field A in fileX to field B in fileY and field C in fileX to field D in fileZ.
But then you have a multipath join and these joins can only be used as descriptive fields (translation of the codes).




Frank
prod: WF 7.6.10 platform Windows,
databases: msSQL2000, msSQL2005, RMS, Oracle, Sybase,IE7
test: WF 7.6.10 on the same platform and databases,IE7

 
Posts: 2387 | Location: Amsterdam, the Netherlands | Registered: December 03, 2006Report This Post
GinnyJakes
Expert
posted Hide Post
JOIN FIELD_A IN FILE1 TO [ALL] FIELD_B IN FILE2 AS J1
JOIN FIELD_A IN FILE1 TO [ALL] FIELD_C IN FILE3 AS J2
JOIN FIELD_A IN FILE1 TO [ALL] FIELD_D IN FILE4 AS J3


Ginny
---------------------------------
Prod: WF 7.7.01 Dev: WF 7.6.9-11
Admin, MRE,self-service; adapters: Teradata, DB2, Oracle, SQL Server, Essbase, ESRI, FlexEnable, Google
 
Posts: 2723 | Location: Ann Arbor, MI | Registered: April 05, 2006Report This Post
webmeister
Guru
posted Hide Post
Frank and Ginny,

Thanks for your replies..... Frank, I wasn't quite clear on your reply...Ginny, I will use your suggestion. It's rough when you've been away from FOCUS since 1997, but a lot of it is coming back quickly.


Mainframe FOCUS 7.0
VM/CMS and MVS/TSO
 
Posts: 250 | Registered: January 14, 2008Report This Post
Leah
Virtuoso
posted Hide Post
As an addendum to Ginny's excellent simple example, if by some chance the files have fields with the same names.

JOIN FIELD_A IN FILE1 TO FIELD_A IN FILE2 AS J1
JOIN FILE2.FIELD_A IN FILE1 TO FIELD_A IN FILE3 AS J3
JOIN FILE3.FIELD_A IN FILE1 TO FIELD_D IN FILE4 AS J4


Leah
 
Posts: 1317 | Location: Council Bluffs, IA | Registered: May 24, 2004Report This Post
jgelona
Master
posted Hide Post
Don't forget about the TAG attribute. Using Leah's example:
JOIN FIELD_A   IN FILE1 TAG A TO FIELD_A IN FILE2 TAG B AS J1
JOIN B.FIELD_A IN FILE1       TO FIELD_A IN FILE3 TAG C AS J3
JOIN C.FIELD_A IN FILE1       TO FIELD_D IN FILE4       AS J4


In FOCUS since 1985. Prod WF 8.0.08 (z90/Suse Linux) DB (Oracle 11g), Self Serv, Report Caster, WebServer Intel/Linux.
 
Posts: 975 | Location: Oklahoma City | Registered: October 27, 2006Report This Post
Leah
Virtuoso
posted Hide Post
Thanks for the addition, when you reply at 10:36 at night, some code just goes away from current memory.


Leah
 
Posts: 1317 | Location: Council Bluffs, IA | Registered: May 24, 2004Report This Post
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