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v.suresh
New User
Joined: 29 Jun 2007
Posts: 5
Location: Bangalore
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Hi Friends,
How to find whether the file is sorted or not in cobol?Plz give explanation with coding? |
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dbzTHEdinosauer
Global Moderator
Joined: 20 Oct 2006
Posts: 6966
Location: porcelain throne
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to check whether a file is sorted or not, you have to compare the previous record to the current record. If the previous record (or the key portion of the record) <= the current record then the file is sorted.
| Code: |
01 WS-PREV-REC PIC X(??) VALUE SPACES.
01 WS-CURR-REC PIC X(??).
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| Code: |
READ FILE INTO WS-CURR-REC
IF WS-CURR-REC > WS-PREV-REC
THEN
MOVE WS-CURR-REC
TO WS-PREV-REC
ELSE
DISPLAY 'RECORDS NOT SORTED'
GOBACK
END-IF
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dbzTHEdinosauer
Global Moderator
Joined: 20 Oct 2006
Posts: 6966
Location: porcelain throne
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v.suresh,
I would not advertise that you work for IBM, India, if I were you. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
When a file is sorted, it is usually sorted by one or more "sort keys" (rather than the entire record).
Code (similar to the example posted) needs to check "this" sort key(s) against the previous sort key(s) to detemine if the file is "in sequence". |
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