IBM Mainframe Forum Index
 
Log In
 
IBM Mainframe Forum Index Mainframe: Search IBM Mainframe Forum: FAQ Register
 

Accessing seqfile records in reverse order


IBM Mainframe Forums -> Mainframe Interview Questions
Post new topic   Reply to topic
View previous topic :: View next topic  
Author Message
rambabu
Currently Banned

New User


Joined: 18 Apr 2005
Posts: 67

PostPosted: Mon May 23, 2005 8:10 pm
Reply with quote

how can i get the sequential file records in reverse order(i.e) last record to first record?
Back to top
View user's profile Send private message
priya

Moderator


Joined: 24 Jul 2003
Posts: 568
Location: Bangalore

PostPosted: Mon May 23, 2005 9:38 pm
Reply with quote

Yes, you can do with READ PREV command in CICS.

If you want to do in COBOL, you have to use your programming LOGIC.
Back to top
View user's profile Send private message
David P

Active User


Joined: 11 Apr 2005
Posts: 106
Location: Cincinnati Ohio

PostPosted: Tue May 24, 2005 1:56 pm
Reply with quote

Hi Priya,

I am not very sure of using the READ PREV command with Sequential files
as till date I have used this only for VSAM data sets.

Can you please elaborate more on how to use READ PREV with sequentail
files. I want to know how exactly it functions in case of sequential data sets.

regards,
David.
Back to top
View user's profile Send private message
somasundaran_k

Active User


Joined: 03 Jun 2003
Posts: 134

PostPosted: Tue May 24, 2005 7:13 pm
Reply with quote

Rambabu
Use SORT. Pad a sequence number to each record and sort these records on the sequence number in descending order.

Regds
-Som
Back to top
View user's profile Send private message
rambabu
Currently Banned

New User


Joined: 18 Apr 2005
Posts: 67

PostPosted: Tue May 24, 2005 8:09 pm
Reply with quote

thnk u.can any body tellme cobol (using reverse order) i want...
Back to top
View user's profile Send private message
mmwife

Super Moderator


Joined: 30 May 2003
Posts: 1592

PostPosted: Wed May 25, 2005 6:16 am
Reply with quote

Can't do it. Try Assembler. Or FileAid copyback, then read that in COBOL.
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic View Bookmarks
All times are GMT + 6 Hours
Forum Index -> Mainframe Interview Questions

 


Similar Topics
Topic Forum Replies
No new posts Compare only first records of the fil... SYNCSORT 7
No new posts Pulling a fixed number of records fro... DB2 2
No new posts Rotate partition-logical & physic... DB2 0
No new posts Join multiple records using splice DFSORT/ICETOOL 5
No new posts EZT program to build a flat file with... All Other Mainframe Topics 9
Search our Forums:

Back to Top