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  3. October 2014

RE: SQL issue with EXISTS not "working"

Subject: RE: SQL issue with EXISTS not "working"> Date: Thu, 23 Oct 2014 15:31:19 -0400

As long as there are not duplicates within the individual files (non unique
ITEM) I agree this will do it.

However, if they are unique, I'm curious why the original SQL did not work
which makes me think his individual files are not unique.


If there were multiple records with the same item# in the source table which did not exist in already exist in the target table, all of those records will be written to target table.
This really needs to utilize the Row_Number OLAP function and then select only the first occurrence of the item#.
Jim


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