Quote:
SQL> create user asdf identified by asdf;
User created.
SQL> grant dba to asdf
2 ;
Grant succeeded.
SQL> disco
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.6.0 - Production
SQL> connect asdf/asdf@qa2
Connected.
SQL> exec dbms_system.set_sql_trace_in_session(140,888,TRUE);
PL/SQL procedure successfully completed.
As system user has dba role by default, it has execute privilege on dbms_system by default