Portal | Manuals | References | Downloads | Info | Programs | JCLs | Mainframe wiki | Quick Ref
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Profile Log in to check your private messages Log in
 
Why is it that we use only fixed length records in RRDS

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM
View previous topic :: :: View next topic  
Author Message
himanshu7

Active User


Joined: 28 Aug 2007
Posts: 131
Location: At Desk

PostPosted: Tue Dec 02, 2008 5:46 pm    Post subject: Why is it that we use only fixed length records in RRDS
Reply with quote

Why is it that we use only fixed length records in RRDS.
Back to top
View user's profile Send private message

enrico-sorichetti

Global Moderator


Joined: 14 Mar 2007
Posts: 10457
Location: italy

PostPosted: Tue Dec 02, 2008 6:03 pm    Post subject: Reply to: VSAM
Reply with quote

in the RRDS organization records are identified by their Relative Record number

but the VSAM access is by RBA Relative Byte Address,

so in order to calculate correctly the RBA the record length must be fixed

RBA = ( record_number - 1 ) * record_length
Back to top
View user's profile Send private message
himanshu7

Active User


Joined: 28 Aug 2007
Posts: 131
Location: At Desk

PostPosted: Tue Dec 02, 2008 6:58 pm    Post subject:
Reply with quote

Thank you icon_smile.gif
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts Limit in Length for a CICS START seahawk789 CICS 6 Mon Apr 02, 2018 8:34 pm
No new posts Extract the records with a PD field's... sudhakar84 DFSORT/ICETOOL 11 Mon Apr 02, 2018 7:26 pm
No new posts Merge 2 records sancraig16 SYNCSORT 19 Tue Mar 27, 2018 8:17 pm
No new posts Copy set of records based on condition krish.deepu SYNCSORT 2 Thu Mar 08, 2018 11:39 am
No new posts add sequence number for duplicate rec... SRUTHI DRAVIDAMANI COBOL Programming 11 Thu Feb 22, 2018 5:37 pm

Facebook
Back to Top
 
Job Vacancies | Forum Rules | Bookmarks | Subscriptions | FAQ | Polls | Contact Us