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Oracle Tips by Burleson |
Oracle10g Grid Computing
with RAC
Chapter 8 - RAC Administration
Exporting the Server Parameter
File
CREATE PFILE
FROM SPFILE;
The example below creates a text initialization
parameter file from a server parameter file, where the names of the
files are specified:
CREATE PFILE='/u01/oracle/product/920/dbs/racdb_init.ora'
FROM SPFILE='/u01/oracle/product/dbs/racdb_spfile.ora';
Refer to ‘Oracle Database 10g Database
Reference’ for all the parameters that can be changed with an ALTER
SYSTEM command.
UNDO Management
The Oracle database uses undo segments for undo
transactions, they are also used to provide read-consistent images.
Traditionally, Oracle maintained rollback segments to store the undo
records. Undo records are used for three main purposes. These
purposes are:
The above text is
an excerpt from:
Oracle 10g Grid & Real Application
Clusters
Oracle 10g
Grid
Computing with RAC
ISBN 0-9744355-4-6
by Mike Ault, Madhu Tumma
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