http://www.ardentperf.com/2007/05/23/accessing-arbitrary-ancestors-in-hierarchical-queries/ Jeremy Schneider Wed, 30 Nov 2011 21:26:13 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.ardentperf.com/2007/05/23/accessing-arbitrary-ancestors-in-hierarchical-queries/#comment-692 Ravi Tue, 31 Jul 2007 06:33:53 +0000 http://www.ardentperf.com/2007/05/23/accessing-arbitrary-ancestors-in-hierarchical-queries/#comment-692 In "The Solution: Step 2" you have done max(L1) over (order by N) L1, max(L2) over (order by N) L2, max(L3) over (order by N) L3, max(L4) over (order by N) L4 I am little confused with "order by N" how it works.If I am doing "order by L" I am geting totaly different result.Since wrt to 1 column there is only 1 value for max analytical function if partition clause is not mentioned then how this is working pls explain .Thanks In “The Solution: Step 2″
you have done
max(L1) over (order by N) L1,
max(L2) over (order by N) L2,
max(L3) over (order by N) L3,
max(L4) over (order by N) L4
I am little confused with “order by N” how it works.If I am doing “order by L” I am geting totaly different result.Since wrt to 1 column there is only 1 value for max analytical function if partition clause is not mentioned then how this is working pls explain .Thanks

]]> http://www.ardentperf.com/2007/05/23/accessing-arbitrary-ancestors-in-hierarchical-queries/#comment-223 Dominic Delmolino Wed, 23 May 2007 19:25:02 +0000 http://www.ardentperf.com/2007/05/23/accessing-arbitrary-ancestors-in-hierarchical-queries/#comment-223 Very cool -- nice explanation too. Very cool — nice explanation too.

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