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...index sequential file in cobol

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Question by prabhakar
Submitted on 9/15/2003
Related FAQ: COBOL FAQ
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what is index sequential file in cobol


Answer by jeannacopoulos
Submitted on 6/23/2004
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a construct containing a indexed portion
and a data portion and whose index portion is updated,modified in a sequential way

 

Answer by SHASHI
Submitted on 7/7/2004
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WHEN INDEX FILE IS CREATED THE RECORDS ARE STORED IN SORTED ORDER. WITH INDEX FILES BOTH THE RECORDS AND INDEXES POINTED TO THE RECORDS ARE CREATED. ACCESS IS FASTER HERE

 

Answer by sangram Keshari chinda
Submitted on 11/16/2004
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Indexed sequential files are also called indexed files whose records are first inserted sequentialy by use of key(index) in ascending order,but updated , deleted and retrived randomly with the use of index .for this a index table is maintained,u can imagine a dictionary where to find "sangram' u have to use index S then in S u will sequentially go to search "Sangram" .  Thats why indexed sequential.its as simple as that

 

Answer by Madhu
Submitted on 5/13/2005
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index sequential file is nothing but the file which contain index key, fro a sequential files we have to retrieve using relative record number or any other key.

 

Answer by Pradyumna
Submitted on 8/22/2006
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Index Sequential File are basically files which maintain an Index for faster retrieval of data. With every row an Index number is assigned so that it can be uniquely identified.

 

Answer by Candace
Submitted on 12/1/2006
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