oracle权限回收测试

创建用户tt,tt2

create user tt identified by tt;
create user tt2 identified by tt;

授予用户tt系统权限(with admin option)

grant create session,create table to tt with admin option;

用户tt将系统权限授予用户tt2

conn tt/tt
grant create session,create table to tt2 ;

查询用户tt,tt2拥有的系统权限

SELECT grantee,
      privilege
FROM DBA_SYS_PRIVS
WHERE GRANTEE IN
  (SELECT USERNAME
    FROM dba_users
    WHERE username  in ('TT','TT2'))
ORDER BY 1;

回收用户tt的系统权限

conn / as sysdba
revoke     create session,create table from tt;

再次查询用户tt,tt2拥有的系统权限

SELECT grantee,
      privilege
FROM DBA_SYS_PRIVS
WHERE GRANTEE IN
  (SELECT USERNAME
    FROM dba_users
    WHERE username  in ('TT','TT2'))
ORDER BY 1;

总结

用户tt把系统权限授予用户tt2后，当回收用户tt的系统权限时，用户tt2的权限并不会被回收。