Quote Originally Posted by jmodic
Don't be silly, of course you can change it directly in spfile!

Code:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> alter system set processes=150 scope=spfile;

System altered.

SQL>
Your are right I was missing scope=Spfile
SQL> alter system set processes=150;
alter system set processes=150
*
ERROR at line 1:
ORA-02095: specified initialization parameter cannot be modified
Thanks