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
 

 

How cluster Index works internally

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2
View previous topic :: :: View next topic  
Author Message
raghav08
Currently Banned

New User


Joined: 03 Jun 2008
Posts: 94
Location: Bangalore

PostPosted: Thu Jul 24, 2008 12:43 pm    Post subject: How cluster Index works internally
Reply with quote

Hi,

Could someone explain how cluster Index works internally compare to other types of index?
Back to top
View user's profile Send private message

ashimer

Active Member


Joined: 13 Feb 2004
Posts: 551
Location: Bangalore

PostPosted: Thu Jul 24, 2008 3:28 pm    Post subject:
Reply with quote

http://www.ibmmainframes.com/viewtopic.php?t=3684&highlight=clustered

Please do search ...
Back to top
View user's profile Send private message
raghav08
Currently Banned

New User


Joined: 03 Jun 2008
Posts: 94
Location: Bangalore

PostPosted: Thu Jul 24, 2008 6:06 pm    Post subject: Reply to: How cluster Index works internally
Reply with quote

Hi,


Quote:
..so all the rows whose department number are 100 will store in one page


I have gone thru link provided, is any kind of Index enforces the DB2 how to store the data internally in the table space? OR INDEX used to increase the performance of DML(SELECT/DELETE/INSERT)?

I believe Index will have only key value (by Index defination) along with pointer to access the data from table.

Correct me if I'm wrong.
Back to top
View user's profile Send private message
ashimer

Active Member


Joined: 13 Feb 2004
Posts: 551
Location: Bangalore

PostPosted: Thu Jul 24, 2008 6:15 pm    Post subject:
Reply with quote

Quote:

I believe Index will have only key value (by Index defination) along with pointer to access the data from table.



Correct ... Index has nothing to do with how actual data is stored ...
Back to top
View user's profile Send private message
raghav08
Currently Banned

New User


Joined: 03 Jun 2008
Posts: 94
Location: Bangalore

PostPosted: Thu Jul 24, 2008 6:24 pm    Post subject: Reply to: How cluster Index works internally
Reply with quote

Hi,

I really don't know what sort of examples were discussed in the previous link regarding cluster Index.
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 Order BY AND Index Nileshkul DB2 2 Sat Dec 31, 2016 6:33 pm
No new posts Several errors during building altern... Andi1982 JCL & VSAM 11 Wed Jul 06, 2016 7:39 pm
No new posts Drop building Alternate Index for a p... bhavin.mehta JCL & VSAM 6 Mon Jul 04, 2016 3:47 pm
No new posts How Adabas works in Mainframe ranujn Java & MQSeries 5 Sat Jun 04, 2016 11:20 am
No new posts trying to define a VSAM Cluster in JCL t5590ag JCL & VSAM 10 Thu May 19, 2016 5:52 am


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