oracle 如何知道給了用戶和角色 select權限

SQL> desc user_tab_privs
Name Null? Type
----------------------------------------- -------- ----------------
GRANTEE NOT NULL VARCHAR2(30)
OWNER NOT NULL VARCHAR2(30)
TABLE_NAME NOT NULL VARCHAR2(30)
GRANTOR NOT NULL VARCHAR2(30)
PRIVILEGE NOT NULL VARCHAR2(40)
GRANTABLE VARCHAR2(3)
HIERARCHY VARCHAR2(3)

SQL> grant select on syslog to slxml;
SQL> select * from user_tab_privs

GRANTEE OWNER TABLE_NAME GRANTOR
-------------------- --------------- -------------------- --------------------
PRIVILEGE GRA HIE
-------------------- --- ---
SLXML SL SYSLOG SL
SELECT NO NO

如果要把一個用戶下的所有表的select權限授予給另外一個用戶，可以考慮用這個。
SQL> spool c:\2.sql
SQL> select 'grant select on ' || object_name || ' to sl; ' from user_objects where object_type='TABLE';
grant select on TEST to s
grant select on SC to sl;
grant select on S to sl;
grant select on SYSLOG to
grant select on FROMSYSLO
SQL> spool off
SQL> @ c:\2.sql