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Message Posted: Tue, 03 Sep 2013 @ 10:03:45 GMT


     
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Subj:   Query on performance degradation
 
From:   Jepamony, Johnpaul

Hi Experts,

Request your comments on below scenario in query performance:

Scenario:1

I'm doing an inner join with TGT_TABLE (1000 records) and a small table SML_TABLE(100 records) on all keys columns. So my output will be of 100 records.


Scenario:2

Same thing, I'm going to filter records from TGT_TABLE and store only 500 records to a TMP_TABLE and joining them again with SML_TABLE(100 records) on all keys columns. Here also I will get the output of 100 records.

Now will there be any performance degrade or improvement with Teradata on above scenarios? Share your thoughts.


Regards

John



     
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