Re: Really Wierd Query (Followup)
- From: Tanel Põder <tanel.poder.003@xxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 12 Aug 2004 21:22:26 +0300
> The primary key index that I am using in the query previously mentioned(on
a table with 56 rows and has a clustering factor of 53) has a BLEVEL = 0.
> How is that possible? I thought that by default it needs to be atleast 1
level for the root block?
Blevel shows the highest branch level for your btree index, so an one-block
index only has a leaf block and no branches, so blevel is 0 (alternatively
you could say, that leaf blocks are on blevel 0). Height column is the one
which show the actual index height.
Tanel.
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