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pjnithin
Active User
Joined: 22 Dec 2005
Posts: 116
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I want to copy first 11 records and the last records from a sequential file.
Is there a direct method in sort other than using icetool. |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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| Quote: |
| want to copy first 11 records and the last records from a sequential file. |
The "last records"? How many of the "last records"?
| Quote: |
| Is there a direct method in sort other than using icetool. |
Why "other than using icetool"? |
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pjnithin
Active User
Joined: 22 Dec 2005
Posts: 116
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not records, its just the last record. Its the trailer record.
| Frank Yaeger wrote: |
| Quote: |
| want to copy first 11 records and the last records from a sequential file. |
The "last records"? How many of the "last records"?
| Quote: |
| Is there a direct method in sort other than using icetool. |
Why "other than using icetool"? |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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Getting the first 11 records is easy (STOPAFT=11 or ENDREC=11). To get the last record, you can use the method shown in the"Keep the last n records" Smart DFSORT Trick at:
Use [URL] BBCode for External Links
If you don't want to use ICETOOL for some reason, you can use two SORT steps instead of the two SORT operators.
There's also a trick for getting the last n records using COUNT-n with COPYs that's more efficient but if you don't want to use ICETOOL, you probably don't want to use COUNT-n from the Dec, 2004 DFSORT PTF either. |
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Gautam512
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Joined: 05 Oct 2005
Posts: 308
Location: Vizag / US
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This can be done by a small rexx program....
Can be more specific requirements
Thanks,
Gau |
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pjnithin
Active User
Joined: 22 Dec 2005
Posts: 116
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I am not good in rexx...
and I need to do this by a sort job...
I have an input file with millions of records.....
i just want to copy the first 10 records and the last one record into another file. |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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| Quote: |
| i just want to copy the first 10 records and the last one record into another file. |
You can now do this kind of thing quite easily using the new SUBSET operator of DFSORT's ICETOOL available with z/OS DFSORT V1R5 PTF UK90013 (July, 2008) like this:
| Code: |
//S1 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN DD DSN=... input file
//OUT DD DSN=... output file
//TOOLIN DD *
SUBSET FROM(IN) TO(OUT) KEEP INPUT FIRST(10) LAST
/*
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For complete details on the new SUBSET function and the other new functions available with PTF UK90013, see:
Use [URL] BBCode for External Links |
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