Oracle® Database SQL Reference 10g Release 2 (10.2) Part Number B14200-02 |
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Purpose
Use the CREATE
PFILE
statement to export a binary server parameter file into a text initialization parameter file. Creating a text parameter file is a convenient way to get a listing of the current parameter settings being used by the database, and it lets you edit the file easily in a text editor and then convert it back into a server parameter file using the CREATE
SPFILE
statement.
Upon successful execution of this statement, Oracle Database creates a text parameter file on the server. In a Real Application Clusters environment, it will contain all parameter settings of all instances. It will also contain any comments that appeared on the same line with a parameter setting in the server parameter file.
See Also:
CREATE SPFILE for information on server parameter files
Oracle Database Administrator's Guide for additional information on text initialization parameter files and binary server parameter files
Oracle Real Application Clusters Administrator's Guide for information on using server parameter files in a Real Application Clusters environment
Prerequisites
You must have the SYSDBA
or the SYSOPER
role to execute this statement. You can execute this statement either before or after instance startup.
Syntax
create_pfile::=
Semantics
pfile_name
Specify the name of the text parameter file you want to create. If you do not specify pfile_name
, Oracle Database uses the platform-specific default initialization parameter file name.
spfile_name
Specify the name of the binary server parameter from which you want to create a text file.
If you specify spfile_name
, then the file must exist on the server. If the file does not reside in the default directory for server parameter files on your operating system, then you must specify the full path.
If you do not specify spfile_name
, then the database looks in the default directory for server parameter files on your operating system, for the platform-specific default server parameter file name, and uses that file. If that file does not exist in the expected directory, then the database returns an error.
See Also:
Oracle Database Platform Guide for Windows or the appropriate operating system specific documentation for default parameter file namesExamples
Creating a Parameter File: Example The following example creates a text parameter file my_init.ora
from a binary server parameter file production.ora
:
CREATE PFILE = 'my_init.ora' FROM SPFILE = 's_params.ora';
Note:
Typically you will need to specify the full path and filename for parameter files on your operating system. Please refer to your Oracle operating system documentation for path information.