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gokuldass
New User
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Joined: 18 Mar 2005
Posts: 48
Location: india
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How to get previous record value in rexx user exit written.
I am having a dataset like this..
10
15
17
25
I want my output like this..
10 0
15 5 == ( current record value = 15 - previous record value = 10)
17 2
25 8
How to get this desired output through sort.
Thx in advance. |
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Anuj Dhawan
Superior Member
Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India
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I've moved your post to JCL part of the Forum, as SyncSort questions are discussed there and your subject line talk about SyncSort.
Also, I don't understand what exact solution are you looking for as I see two different questions there:
Question 1:
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| How to get previous record value in rexx user exit written. |
Question 2:
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| How to get this desired output through sort. |
I might have misunderstood, however request you to clarify please. |
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Bill Woodger
Moderator Emeritus
Joined: 09 Mar 2011
Posts: 7309
Location: Inside the Matrix
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| Anuj, typing it so does not make it so :-) |
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Anuj Dhawan
Superior Member
Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India
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For a Saturday night at around 10:30 IST, you were too fast for me, Bill.
Thanks!  |
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gokuldass
New User
Joined: 18 Mar 2005
Posts: 48
Location: india
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I tried to get the desired output mentioned in my initial question through syncsort with SYGBLSTRP option in rexx user exit. It did not work for me. So curious to know how to use SYGBLSTRP.
I would also welcome if anyother solution could give me my desired output other than syncsort option that I tried.
Thx,
Gokul Dass |
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Nic Clouston
Global Moderator
Joined: 10 May 2007
Posts: 2455
Location: Hampshire, UK
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| It did not work for me |
Not exactly informative. How did it not work for you? As far as I can see, SYGBLSTRP is not an OPTION but a Syncsort supplied variable. According to my research the length of data placed in that variable cannot exceed 1024 bytes and is apparently documented in chapter 7 (coding rexx exits) in the syncsort manual. (Thanks Kolusu, I stole that bit of info from your forum!) |
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Bill Woodger
Moderator Emeritus
Joined: 09 Mar 2011
Posts: 7309
Location: Inside the Matrix
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If you feel the need to use an EXIT, just save the value of the "current" record, and use it to calculate the difference when you get the "next" record.
The updating could be attempted by passing the data back to SyncSort, but why bother since you have all the information in your EXIT to update the then "current" record?
However, there shouldn't be need of an EXIT at all. Your task can be achieved with IFTHEN=(WHEN=GROUP, assuming your SyncSort is sufficiently up-to-date. So let us know. |
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