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
 
Efficient Query

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2
View previous topic :: :: View next topic  
Author Message
ronie305

New User


Joined: 09 May 2005
Posts: 3

PostPosted: Fri May 27, 2005 1:53 pm    Post subject: Efficient Query
Reply with quote

Hi

I have 2 tables each having over a million rows. I need some data out of them for set up.
The problem is I have is that this data is in Production tables. How can i write gud query to that effect.

Any help will be welcome.

Ronie
Back to top
View user's profile Send private message

MGIndaco

Active User


Joined: 10 Mar 2005
Posts: 432
Location: Milan, Italy

PostPosted: Fri May 27, 2005 3:51 pm    Post subject:
Reply with quote

I think that you must specify some detail about the definition of a table.
A improvement of query is even doing of a good definition of indexes!
I can reccomend you to use at the end of your query the WITH UR option to avoid a -911 or worse a -904 to the user that are reading the table.
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 reg query on DYNALLOC feature raghuraman123 SYNCSORT 12 Wed Jan 10, 2018 2:42 pm
No new posts query to fetch record which has only ... maxsubrat DB2 12 Mon Dec 11, 2017 5:03 pm
No new posts How to query MAXGENS of an existing P... Chuchulo Hatyzak JCL & VSAM 4 Wed Nov 22, 2017 10:23 pm
No new posts Native SQL Query kishpra DB2 1 Wed Nov 22, 2017 8:38 pm
No new posts Query on IEFBR14 with GDG Ashishpanpaliya JCL & VSAM 4 Tue Nov 07, 2017 8:34 pm

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