How to check whether system privilege are granted

Question

How to check whether system privileges like 'create session' and other ones are granted for user.
Is there any sys table where this information is available?
Regards - Neuron

Answer 1

Keep in mind select * from dba_sys_privs where grantee = 'some-user' will give you a list of privileges granted to some-user directly. To get complete list of system privs granted to a user both directly an via roles use:
ACCEPT USER PROMPT 'Please enter user name: '
COLUMN PATH FORMAT A90
SET LINESIZE 132
SELECT  PATH,
        PRIVILEGE
  FROM  DBA_SYS_PRIVS,
          SELECT  'DIRECT GRANT' PATH,
                  '&USER' GRANTED_ROLE
            FROM  DUAL
         UNION ALL
          SELECT  LTRIM(SYS_CONNECT_BY_PATH(GRANTED_ROLE,'->'),'->') PATH,
                  GRANTED_ROLE
            FROM  DBA_ROLE_PRIVS
            START WITH GRANTEE = UPPER('&USER')
            CONNECT BY PRIOR GRANTED_ROLE = GRANTEE
  WHERE GRANTEE = GRANTED_ROLE
/Now on top of privileges granted to a user, user also has privileges granted to PUBLIC. To get privileges user receives via PUBLIC run the above script specifying PUBLIC at the prompt.
SY.