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
 
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 Confusion b/w index and subscript Deepak kumar25 Mainframe Interview Questions 7 Thu Aug 31, 2017 6:50 am
No new posts SQL - select data available in index Nileshkul DB2 3 Mon Jun 26, 2017 1:30 am
No new posts setting new limit Key values for inde... srilata83 DB2 1 Fri Feb 10, 2017 9:24 pm
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

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