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Expand a numeric range


IBM Mainframe Forums -> DFSORT/ICETOOL
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Donnov

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Joined: 16 Sep 2015
Posts: 1
Location: Brazil

PostPosted: Fri Sep 18, 2015 6:27 pm
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Hi, idk if its possible:

I have a file with a numeric range and want to expand it.
Preferable using SORT only (if its possible)
Something like:

Input -----------------

00000000 00000003
00011001 00011050

Expected Output ----

00000000
00000001
00000002
00000003
00011001
00011002
...
00011050

Any ideas ?
Thnx in Advance
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Bill Woodger

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Joined: 09 Mar 2011
Posts: 7311
Location: Inside the Matrix

PostPosted: Fri Sep 18, 2015 7:46 pm
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You could, in one step, generate all the possible numbers.

In a second step, use RESIZE to split your records with a first/last marker.

In a third step, use JOINKEYS to match the files, with UNPAIRED,F1 (the generated numbers file).

In the main task, use WHEN=GROUP to define a group which starts at the first and ends at the last, PUSHing the marker to each record.

Use OUTFIL INCLUDE= to extract those that have been marked.

Whether it would be worth doing that rather than doing something simple in another language is up to you.

This also assumes that ranges don't cross.
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Rohit Umarjikar

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Joined: 21 Sep 2010
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PostPosted: Fri Sep 18, 2015 9:01 pm
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I don't know much sort tricks but I have something similar saved in my local PDS, see if this helps and I am sure Bill or others or yourself can help and suggest to what you want.

This will generate the numbers based on value in 12th position.

Code:
//STEP010  EXEC PGM=SORT                                         
//SYSOUT   DD SYSOUT=*                                           
//SORTIN   DD *                                                 
000001     99                                                   
//SORTOUT   DD  DSN=&&T1,DISP=(NEW,PASS),UNIT=SYSDA             
//SYSIN  DD *                                                   
 OPTION COPY                                                     
 OUTFIL REPEAT=99,OVERLAY=(81:12,2,12:SEQNUM,2,ZD,RESTART=(1,11))
//STEP020  EXEC PGM=SORT                                         
//SYSOUT   DD SYSOUT=*                                           
//SORTIN   DD DSN=&&T1,DISP=(OLD,DELETE)                         
//SORTOUT  DD SYSOUT=*                                           
//SYSIN  DD *                                                   
 OPTION COPY                                                     
 INCLUDE COND=(12,2,ZD,LE,81,2,ZD)                               
 OUTREC BUILD=(12,2)                                             
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Bill Woodger

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Joined: 09 Mar 2011
Posts: 7311
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PostPosted: Fri Sep 18, 2015 10:50 pm
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To get the range:

Code:
 INCLUDE COND=(12,2,ZD,LE,81,2,ZD,
           AND,12,2,ZD,GE,5,2,ZD)


My concern is that TS/OP shows eight-digt numbers, potentially just shy of 100m generated per pair (if the full value of the eight digits is needed). It would however readily work for overlapping ranges.

A single repeat to get sequence numbers, and generate the INCLUDE COND= (need a sequence to identify formatting for the first, subsequent and a "dummy" condition in TRAILER1 to finish with.

However, won't allow for overlapping ranges.

So, are overlapping ranges possible? Maximum value possible is?
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Rohit Umarjikar

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Joined: 21 Sep 2010
Posts: 2567
Location: NYC,USA

PostPosted: Sat Sep 19, 2015 1:42 am
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ftp.software.ibm.com/storage/dfsort/mvs/sortpaug.pdf

Code:
REPEAT=n specifies the number of times each OUTFIL output record is to be repeated. The value for n starts at
2 (write record twice) and is limited to 28 digits (15 significant digits).


I tried for 1-99999999 range and it worked.
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Rohit Umarjikar

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Joined: 21 Sep 2010
Posts: 2567
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PostPosted: Sat Sep 19, 2015 3:42 am
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Bill, You are right, it does overlap after certain significant digit. I have tried up to 3 repeat it works and then it overlaps.
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