You can change the default startup parameters by using startup parameters on a command line, or by incorporating them into a script. You can also use a parameter file.

A parameter file can include any number of startup parameters. This is especially useful if you regularly use the same parameters, or if more parameters are required than can easily fit on the command line. To identify a parameter file, you use the Parameter File (-pf) parameter, which has the following syntax:

-pf filename

You can also include the -pf parameter in the parameter file to reference another parameter file.