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Message Posted: Wed, 08 Apr 2015 @ 17:03:55 GMT


     
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Subj:   Re: Inserting/Updating same target table simultaneously by multiple sessions without locking
 
From:   Walter, Todd

Note that pulling the data out to a file and pushing it back in via BTEQ or TPump will end up costing more resources and more elapsed time than just running the INSERT SELECTs or MERGE INTOs sequentially.

You have not stated why you need them to run concurrently. You may launch them concurrently and Teradata will block whichever arrives second until the first one is done and then will execute the second one.



     
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