Comments on: DELETE in the MERGE statement http://technology.amis.nl/2009/07/29/delete-in-the-merge-statement/?utm_source=rss&utm_medium=rss&utm_campaign=delete-in-the-merge-statement Fri, 12 Apr 2013 10:04:09 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Chris http://technology.amis.nl/2009/07/29/delete-in-the-merge-statement/#comment-5845 Chris Thu, 30 Jul 2009 11:03:02 +0000 http://technology.amis.nl/blog/?p=5924#comment-5845 Nice intro to the merge statement. Until recently, we still had to support 8i but since migrating all customers to 10g it’s become a powerful new tool for us.

What I’d like to have was 2 update / when matched parts (with mutually different where clauses). This would make it much easier to populate slowly changing type 2 dimensions. Interestingly, SqlServer 2008 can do scd2 in one statement, although with dubious syntax (see here).

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