Drop unused Column
- From: Ken Payton <ken.payton@xxxxxxxxxxxxxxxxxx>
- To: Oracle-L <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 03 Aug 2005 15:58:32 -0400
After issuing a drop unused column statement an error occured due to
rollback space. The column was re-issued with a checkpoint and it
continued. After re-issuing the command applications started have
problems accessing the table and the DBA killed the drop unused column
session. The table is now in a Partially Dropped state. Now in this
state the table is unaccessible and per documentation it appears the
only available scenario is to continue with the drop command.
Unfortunately, for the same reasons the column was altered unusable to
begin with was the time frame of such an operation. We are estimating
50 hours on 5 Billion row table. The sad part is the column is not even
populated. The column is the next from last, although the last column
is also not populated. Both columns were added at the same time and
have never had any data in them.
Any ideas on how to get the table back without waiting for the drop to
occur? We can worry about dropping the column later, at such point we
have time.
Kenny
--
Kenny Payton
Software Architect
Public Records Group
Choicepoint, Inc.
ken.payton@xxxxxxxxxxxxxxxxxx
o: (770)752-4054
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