Weird Objects in DBA_SEGMENTS

From: April Wells <>
Date: Wed, 16 Apr 2008 12:42:04 -0500
Message-ID: <>

I have spent the morning cleaning out a tablespace in an attempt to
reclaim 800 GB of space and clean up my production data warehouse.  To
this end... I ran a BUNCH of 


ALTER TABLE <table> move tablespace <tablespace>;


It "appeared" clean... nothing in dba_tables or dba_indexes.


However, my life can't be that simple.


The paranoid dba on my left shoulder urged me to look at dba_segments...
so I did.


select owner, segment_name, partition_name, tablespace_name,
segment_type from dba_segments  where tablespace_name = 'STAGEDAT01';


there are a bunch of segments named similar to 




They "apparently" are tables and indexes.


There are, however, apparently no actual extents... because 

select * from dba_extents where tablespace_name = 'STAGEDAT01';

returns only the plan table that I want to drop anyway


anyone have any ideas on what these BIN segments are?


Thanks in advance.



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Received on Wed Apr 16 2008 - 12:42:04 CDT

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