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Random & dynamic access modes for indexed files in COBOL

 
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Sheth Khushboo

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Joined: 20 Jul 2007
Posts: 1
Location: Ahmedabad

PostPosted: Mon Aug 13, 2007 11:28 pm    Post subject: Random & dynamic access modes for indexed files in COBOL
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what is the difference between random & dynamic access modes for indexed files in COBOL?
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suny_sn1

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Joined: 26 Jun 2007
Posts: 6
Location: India

PostPosted: Tue Aug 14, 2007 12:40 am    Post subject: Re: Random & dynamic access modes for indexed files in C
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Hi, hopefully this will help

http://www.cs.uofs.edu/~mccloske/courses/cmps340/lecture_notes/cobol_files.html
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chandracdac

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Joined: 15 Jun 2007
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Location: bangalore

PostPosted: Mon Sep 03, 2007 3:35 pm    Post subject: Reply to: Random & dynamic access modes for indexed file
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random access means direct access ie if we have the key then we can directly read that one .

dynamic mode means it is a mixture of both random and sequential access, ie
if we want to read the students of only passed out students of particukar year u have to read like this.


example: actually there are no .of students in the school who belongs to passouts of different years.i want to read read only 2007 passouts i have to skip the passouts up to 2006 and i have to read the students of 2007 in sequential to get all the details of 2007.so this is called dynamic mode of reading .
i think its understanding .

thanks
chandra
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