Selecting multiple grants on same object

Question

Hi,
(The following SQl will be ran on 9i, 10g and 11g database versions)
Im trying produce a list of directory grants that are the same from 2 different users (but only display the details of grants from one user)
to clarify....
lets say we have 100 directories, and 2 users that have granted permissions on them, User A and User B.
Permissions can be granted on a directory by just user A, just user B or the same permission granted on the same directory by users A and B.
I want to produce a list that shows details of directories where user A and user B have granted the same permission (but in the list only display details of user A's grants)
so the following SQL will give me all directory permissions granted by user A
select p.table_name,p.grantee,p.owner,p.grantor,p.privilege, o.object_type
     from dba_tab_privs p
     inner join dba_objects o
     on o.object_name = p.table_name
     where o.object_type = 'DIRECTORY'
     and p.grantor = 'USERA';
so i want to produce the same list of grants by just USERA but only if those directories have also been granted the same permission by USERB
any ideas of the easiest way to do this?
Thanks

Answer 1

Not sure what you mean:
SQL> create user u1 identified by u1;
User created.
SQL> create user u2 identified by u2;
User created.
SQL> grant create session,create any directory to u1;
Grant succeeded.
SQL> grant create session,create any directory to u2;
Grant succeeded.
SQL> connect u1/u1
Connected.
SQL> create directory D1 as 'C:\Temp';
Directory created.
SQL> grant read on directory d1 to scott;
Grant succeeded.
SQL> grant read on directory d1 to u2 with grant option;
Grant succeeded.
SQL> connect u2/u2
Connected.
SQL> grant read on directory d1 to scott;
Grant succeeded.
SQL> connect scott
Enter password: *****
Connected.
select  p.table_name,
         p.grantee,
         p.owner,
         p.privilege,
         o.object_type
   from      dba_tab_privs p
         inner join
             dba_objects o
           on o.object_name = p.table_name
   where o.object_type = 'DIRECTORY'
   and p.grantor = 'U1'
intersect
select  p.table_name,
         p.grantee,
         p.owner,
         p.privilege,
         o.object_type
   from      dba_tab_privs p
         inner join
             dba_objects o
           on o.object_name = p.table_name
   where o.object_type = 'DIRECTORY'
   and p.grantor = 'U2'
TABLE_NAME                     GRANTEE                        OWNER
PRIVILEGE                                OBJECT_TYPE
D1                             SCOTT                          SYS
READ                                     DIRECTORY
SQL> SY.