Re: Altering Freelist Groups in 10gR2 ?

  • From: "Jonathan Lewis" <jonathan@xxxxxxxxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 27 Sep 2006 10:47:14 +0100

The only option is to do the CTAS, as the freelist group blocks are located immediately after the segment header block in the first extent.

The only other option to consider is 'alter table move' to
move the table into a tablespace defined to use ASSM
and forget about freelist groups - but I'm not very keen
on ASSM for high-performance, high-concurrency systems


Jonathan Lewis

The Co-operative Oracle Users' FAQ

Cost Based Oracle: Fundamentals

----- Original Message ----- From: "VIVEK_SHARMA" <VIVEK_SHARMA@xxxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Wednesday, September 27, 2006 10:42 AM
Subject: Altering Freelist Groups in 10gR2 ?


When converting a NON-RAC Database to RAC in 10.2, the freelist groups
need to be altered to 4(= to the Number of RAC Nodes)

How is the freelist groups to be altered?

Seek to avoid usage of the CTAS command i.e. "Create Table <Duplicate
Tbl Name with freelist groups 4> As Select * from Original Table" since
this is very tedious

Is there any performance issue/Others with using the alter approach
versus the CTAS approach?

Thanks indeed

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