（1）

SQL> startup pfile=/oracle/admin/db/pfile/init.ora.73201416940

ORACLE instance started.

Total System Global Area 285212672 bytes

Fixed Size 2095704 bytes

Variable Size 88081832 bytes

Database Buffers 188743680 bytes

Redo Buffers 6291456 bytes

Database mounted.

Database opened.

（2）

SQL> create spfile from pfile='/oracle/admin/db/pfile/init.ora.73201416940';

File created.

（3）

重新启动，可以找到spfile

备份spfile

SQL> create pfile='/oracle/admin/pfile.ora' from spfile;

File created.