ORA-02030 WHEN GRANTING SELECT ON V$ VIEW

When you grant v$session on select  to normal user,you will receive:ORA-02030: can only select from fixed tables/views
e.g.
    SQL> connsys/oracle@devdb1as sysdba
    Connected.
     SQL> create user leiz identified by leiz default tablespace data01;
     User created.
     SQL> grant connect, resource,create synonym to leiz;
     Grant succeeded.
     SQL> grant select on v$session to leiz;
     grant select on v$session to leiz
    ERROR at line 1:
     ORA-02030: can only select from fixed tables/views
Reason：
The actual view created on the dynamic performance table is named V_$(view name).  The V$(view name) is only a synonym and not an actual fixed table or a view.
SQL> select OWNER, OBJECT_TYPE,OBJECT_NAME
            from dba_objects
            where object_name in ('V$SESSION','V_$SESSION');
            OWNER      OBJECT_TYPE          OBJECT_NAME
             ----------       --------------------             --------------------
             SYS             VIEW                             V_$SESSION
             PUBLIC      SYNONYM                    V$SESSION
SQL> select * from v$fixed_view_definition c

Solution：
Granting select on the underlying V_$ view instead of the V$ synonym will allow you to grant select on the object.
SQL>grant select on v_$session to leiz;
           Grant succeeded.(sys user)
SQL> connleiz/leiz@devdb1
           Connected.
SQL> select count(*) from sys.v_$session;
           COUNT(*)
           ----------
          33
SQL> create synonym v$session for sys.v_$session;
           Synonym created.
SQL> select count(*) from v$session;
           COUNT(*)
           ----------
           33