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Re: How to use merge not to do an upsert but to do a simple update

From: <billiauk_at_yahoo.co.uk>
Date: 13 Dec 2004 00:18:17 -0800
Message-ID: <1102925897.283023.317540@z14g2000cwz.googlegroups.com> 





The possibility that you might need a MERGE without an INSERT makes
sense to me. Obviously it makes sense to Oracle too because it is a
feature of 10g.



Why would you want to? Because a double-correlated UPDATE is slow.
Because your in-line view UPDATE ( SELECT ... ) SET ... might not be
key protected and no-one is suggesting using /*+ BYPASS_UJVC */ right?
Adrian
Received on Mon Dec 13 2004 - 02:18:17 CST












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