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delete a record in sequential file

 
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priya_gmain

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Joined: 18 Sep 2006
Posts: 7

PostPosted: Mon Oct 16, 2006 2:05 pm    Post subject: delete a record in sequential file
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Hi,

Plz let me know how to delete a record in sequential file and rewrite the file in a cobol pgm.
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meetreks

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Joined: 28 Sep 2006
Posts: 26
Location: Edinburgh

PostPosted: Mon Oct 16, 2006 2:46 pm    Post subject:
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Hi,

You cannot possibly delete a record in a sequential file. THe DELETE keyword is only of Indexed files,which can be deleted.

Hope this helps.
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priya_gmain

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Joined: 18 Sep 2006
Posts: 7

PostPosted: Mon Oct 16, 2006 5:32 pm    Post subject: Re: delete a record in sequential file
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Ya I know that ......But in an interview I have been asked that if there is a requirement to delete a record in sequential file and rewrite .....how do u do that..........
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nachiks

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Joined: 08 Apr 2006
Posts: 1
Location: chennai

PostPosted: Tue Oct 17, 2006 6:26 pm    Post subject:
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HI,


We cannot delete records using DELETE in sequential files but we can logically delete the records.What we can do is we can rewite a record with SPACES. It looks like this

Code:
BTECH124 A---
BTECH125 B---

BTECH127 C---

TRY THIS

Code:
DECLARE A FILE
01 REC.
02 EMPNO PIC X(15).
02----
02----

IN WSS.
DECLARE A "77 EMPLOYEENO PIC A(15). "

ACCEPT EMPLOYEENO.

READ SEQUENTIAL-FILE <eof>     /* NOW IT READS ALL RECORDS
IF  EMPLOYEENO  =  EMPNO         /*IF CONDITIONS PICKS A REC.
MOVE SPACES TO REC.               /* SPACES ARE MOVED TO THAT REC
REWRITE REC.                           /* NOW REWITING WILL MAKE SPACES


PLS CHEK
BYE
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