Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Fri, 19 Apr 2002 @ 18:31:20 GMT


     
  <Prev Next>   <<First <Prev
Next>
Last>>
 


Subj:   Re: Large Table \ Small Table Join Question
 
From:   David Wellman

Clay,

I've seen this sort of thing before, and I took an approach very similar to your Scenario 2 but without the 'dummy' column.

I changed the PI of the small table to NOT be the columns that I was joining on (or even to include some columns that I wasn't joining on), in your case maybe use Xchg_Rate if it would give you good distribution.

AND make sure you've got stats on both tables.

I've used that a couple of times and it's worked a treat.


Cheers,

Dave

Ward Analytics Ltd: Information in motion (www.ward-analytics.com)



     
  <Prev Next>   <<First <Prev
Next>
Last>>
 
 
 
 
 
 
 
 
 
  
  Top Home Privacy Feedback  
 
 
Copyright for the TeradataForum (TDATA-L), Manta BlueSky    
Copyright 2016 - All Rights Reserved    
Last Modified: 27 Dec 2016