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MINUS operation with remote table

554553Jun 18 2012 — edited Jun 22 2012
Hi all,

Please help me with this problem.

I have two tables with 20 columns each, one table resides on one database and the other table is accesed through a db link. Both tables contains +800,000 records.

I need to know the record differences between these two tables - this is a periodical process, not for once- , I am using a MINUS operation with full scan, the problem is that my query is taking long time to finish : +20 min. Also i tried witn COLUMN IN() instead MINUS but my query performance is worst.

Do you know another way to get the record differences with a better performance?

Thanks in advance

Edited by: Osymad on Jun 18, 2012 5:12 PM
This post has been answered by Peter vd Zwan on Jun 18 2012
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