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
 

 

updating a primary key column

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2
View previous topic :: :: View next topic  
Author Message
rashmi.ranjan75

New User


Joined: 20 Feb 2006
Posts: 34

PostPosted: Mon Apr 24, 2006 1:08 pm    Post subject: updating a primary key column
Reply with quote

Hi,

If i update a primary key column does it impact the performance of the sql. Any other constraint in updating primary key coulmn.

Please suggest.

Regards
rashmi
Back to top
View user's profile Send private message

DavidatK

Active Member


Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA

PostPosted: Tue Apr 25, 2006 5:39 am    Post subject: Re: updating a primary key column
Reply with quote

rashmi,

Certainly updating the primary key, or any of the secondary keys is going to impact the performance of the SQL greater than updating non key columns. DB2 must also update the indexes for the keys you change.

Dave
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 DB2 query Using Recursion, Converting... smilewithashu2 DB2 1 Tue Jan 03, 2017 12:50 pm
No new posts Updating the counters after eliminati... PANDU1 DFSORT/ICETOOL 12 Mon Nov 21, 2016 9:47 am
No new posts Updating Cursor row withour using FOR... chandan.inst DB2 15 Tue Nov 08, 2016 11:17 am
No new posts SQZ pipe delimited file with 1 column... Rick Silvers DFSORT/ICETOOL 2 Sun Nov 06, 2016 8:11 pm
This topic is locked: you cannot edit posts or make replies. Checking wether a string starts from ... sundaram.naveen CLIST & REXX 9 Thu Oct 06, 2016 11:56 am


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