Create user who can update another schema table

Question

Hi,
We have a prod system under which we need to update  the application schema by running different update statement and  create/execute function,procedure,package body. This is very easy if you use the owner schema. But i need to run those activities from another user due to some restriction. How can i do that??
May u suggested to give update any table privilege..but this would give all the dictionary table access also.
Is there any privilege that would allow any other user to update another schema table without using the schema name infront of the table name??
Plss suggest

Answer 1

John,
Can we use public synonym for it ?  I don't know the security risk for it though :
SQL> connect hr/hr
Connected.
SQL> select * from scott.emp;
select * from scott.emp
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> connect scott/tiger
Connected.
SQL> create public synonym scotemp for scott.emp;
Synonym created.
SQL> connect hr/hr;
Connected.
SQL> select * from scotemp;
select * from scotemp
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> connect scott/tiger
Connected.
SQL> grant select on emp to hr;
Grant succeeded.
SQL> connect hr/hr
Connected.
SQL> select * from scotemp;
14 rows selected.
SQL> show user;
USER is "hr"
SQL> update scotemp set ename='SMITHX' where empno=7369;
update scotemp set ename='SMITHX' where empno=7369
ERROR at line 1:
ORA-01031: insufficient privileges
SQL> connect scott/tiger
Connected.
SQL> grant update on emp to hr;
Grant succeeded.
SQL> connect hr/hr
Connected.
SQL> update scotemp set ename='SMITHX' where empno=7369;
1 row updated.
SQL> rollback;
Rollback complete.
SQL>
Regards
Girish Sharma