On Wed, Aug 6, 2014 at 1:15 AM, Kim Berg Hansen <kibeha@xxxxxxxxx> wrote: > If the idea of deleting the "higher" ROWID is to delete the "newest" row, > that is not at all certain. But if the rows are identical duplicates, that > shouldn't matter ;-) Probably this is already stated somewhere in this thread, but it bears repeating. Duplicate refers to PK/UK, not the row. Identifying which 'duplicate' to delete it not always straight forward. Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist Sr Oracle DBA at Pythian Pythian Blog http://www.pythian.com/blog/author/still/ Oracle Blog: http://jkstill.blogspot.com Home Page: http://jaredstill.com