Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

Sequiential, Relative and Indexed files vs VSAM

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2
View previous topic :: :: View next topic  
Author Message
msnreddy

New User


Joined: 09 Jun 2004
Posts: 4
Location: Bangalore

PostPosted: Thu Jun 24, 2004 2:56 pm    Post subject: Sequiential, Relative and Indexed files vs VSAM
Reply with quote

Hi

We have Sequiential,relative and indexed files in COBOL.VSAM also having that files is there any added advantage is there?
Back to top
View user's profile Send private message

gkchakri
Currently Banned

New User


Joined: 07 Jun 2004
Posts: 9
Location: Bangalore

PostPosted: Thu Jun 24, 2004 3:06 pm    Post subject:
Reply with quote

HAI,

I find only one difference going to Sequential file, In VSAM sequential files are of ESDS-Entry Sequential Data Sets:
In which Random Accessing is possible by RBA(Relative Byte Address).
which a general sequential file doesn't have.

if you get any more differrences, plz let me know it.

bye,
gkchakri
Back to top
View user's profile Send private message
priya

Moderator


Joined: 24 Jul 2003
Posts: 568
Location: Bangalore

PostPosted: Sat Jul 03, 2004 12:59 am    Post subject: Re
Reply with quote

Dear,

You can create files in Non- VSAM entries also using QSAM, BDAM and ISAM. But files created with VSAM (ESDS, RRDS, KSDS) are more sequired, independent and can be accessed faster comparing non-vsam files.
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 -> DB2 All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts Unable to create multiple files using... mbattu COBOL Programming 3 Fri May 05, 2017 5:35 pm
This topic is locked: you cannot edit posts or make replies. Merge two files and update Trailer re... Yashashri JCL & VSAM 1 Thu May 04, 2017 12:54 pm
No new posts VSAM Space Allocation mrgnndhmk JCL & VSAM 7 Sat Apr 22, 2017 12:42 am
No new posts Dynamic split of files under groups sril.krishy DFSORT/ICETOOL 4 Mon Apr 17, 2017 1:09 pm
No new posts Compare two files and subtract values ameetmund DFSORT/ICETOOL 7 Fri Mar 31, 2017 3:35 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us