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priyabrata mohanty
New User
Joined: 04 Mar 2005
Posts: 8
Location: bangalore
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hi friends,
can anybody say whts the difference between internal and external sort and which one is more effecient to use(i.e. where to use which one)? if cobol sort stmt is converted to jcl dfsort stmt before cobol pgm run, then whts the advantage of using jcl sort ?
thankx n regards,
priyabrata mohanty. |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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jeyaprakashmN
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Joined: 08 Mar 2005
Posts: 4
Location: Bangalore
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DFSORT two types .
1. MVS Utility called " SORT " also know as "Stand Alone sort.
2. Using High level lanhauage Like Cobol, Fortron know as "Internal Sort ".
If you want to know which one best means " Stand alone sort" is best., .
Advantage : If you want to resequence with different format or different fields, it's very easy to change and memory (Space) also very less and very fast.
Whereas Internal Sort , you have to change the coding in program every time than compilering all the jobs, it will take more time.
Jeya Prakash Narayanan.M |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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Jeya,
Actually, the "internal" sort (COBOL SORT statement) calls the "Stand Alone sort" (e.g. DFSORT). And you can use control statements for DFSORT along with the "internal" sort (e.g. with DFSPARM).
Please see the links I mentioned above for more information on this. |
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