How do I set parameters in Spfile?
If you want to make a change to a parameter in the spfile without affecting the current instance, you can do so using the SCOPE=SPFILE option of the ALTER SYSTEM statement. This is useful when you want to make a change starting from the next startup and not for the current instance.
How do I change the Spfile parameter in RAC?
Here SID is the instance_name. For changing the parameter in both the instances of the RAC. alter system set SEC_CASE_SENSITIVE_LOGON=FALSE scope=both sid=’*’; For changing the parameter in a specific instance.
How do I remove hidden parameters from Spfile?
A parameter can be removed from an spfile by issuing: ALTER SYSTEM RESET “_some_hidden_parameter” scope = spfile; You will likely have to stop and start the instance(s) to have the changes take effect.
Is Oracle using Spfile?
Oracle provides two different types of parameter files that you can use, PFILE and SPFILE. Since SAP/Oracle recommends using SPFILE over PFILE, I will provide some details on SPFILE to answer your question in more detail. In Oracle9i, a new feature called SPFILE (server parameter file) was introduced.
Where is Spfile located?
The default location of the SPFILE is under $ORACLE_HOME/dbs on Unix and under %ORACLE_HOME%\database under Windows. Oracle searches first for a file named spfile$ORACLE_SID.
What does Spfile?
SPFILE is a binary file that contains the same information as the old PFILE. SPFILE permits dynamic changes without requiring you to restart that instance. By default, if you do not specify PFILE in your STARTUP command, Oracle will use server parameter file (SPFILE).
How do I change the Spfile location in Oracle RAC?
Generally, we don’t change SPFILE location of a single-instance database, because it should be found in the default location, $ORACLE_HOME/dbs/spfile$ORACLE_SID….Here are the steps to change SPFILE location:
- Backup Original SPFILE.
- Create SPFILE in New Location.
- Point to New SPFILE in PFILE.
Where is Spfile located ASM?
You can check the location of the Oracle ASM SPFILE in the GPnP profile with the ASMCMD spget command. See “spget”. Restart the Oracle ASM instance so that the instance reads the SPFILE in the new location.
What should be the value of the spfile parameter?
Multiple instances should have the same value. The value of this parameter is the name of the current server parameter file ( SPFILE) in use. This parameter can be defined in a client side PFILE to indicate the name of the server parameter file to use.
What do you mean by spfile in Oracle?
To overcome his limitation Oracle has come up with a new feature called the spfile (server parameter file). The spfile can be thought of as a control file that is used by Oracle to store the initialization parameters. Oracle writes to and reads from this binary file.
What happens if you do not specify spfile _ name?
If you do not specify spfile_name, then Oracle Database uses the platform-specific default server parameter filename. If spfile_name already exists on the server, then this statement will overwrite it. When using a default server parameter file, you start up the database without referring to the file by name.
Is it possible to export a spfile to a text file?
Exporting the spfile to a text file is possible using the CREATE PFILE command. This might be useful when you want to add parameters to the pfile or to the spfile. In case you want to add parameters to the spfile, just export the file using the statement given below.