Query-only privilege

Question

i want to know what are query-only privileges.for example i want to grant query-only privileges to user XYZ on object emp.
can any one provide me an example for granting query-only privileges for the above scenerio.
thankx.....

Answer 1

Hi,
As Eric said, you can grant object privileges on the tables to the role instead of directly to the user, but remember that if the user do tables calls to the other user through PROCEDURES or FUNCTIONS, you need grant the object privilege directly to the user like a example below:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SYSTEM@ORACLE10> create role readonly;
Role created.
SYSTEM@ORACLE10> grant select on test2.emp to readonly;
Grant succeeded.
SYSTEM@ORACLE10> create user test identified by test default tablespace USERS quota unlimited on USERS;
User created.
SYSTEM@ORACLE10> grant connect,resource to test;
Grant succeeded.
SYSTEM@ORACLE10> grant readonly to test;
Grant succeeded.
SYSTEM@ORACLE10> connect test/test
Connected.
TEST@ORACLE10> select count(*) from test2.emp;
  COUNT(*)
         10
TEST@ORACLE10> create or replace function EXAMPLE return NUMBER as
  2  BEGIN
  3    declare
  4       result number;
  5    BEGIN
  6    select count(*) into result from test2.emp;
  7    return result;
  8    END;
  9  END;
10  /
Warning: Function created with compilation errors.
TEST@ORACLE10> show errors
Errors for FUNCTION EXAMPLE:
LINE/COL ERROR
6/3 PL/SQL: SQL Statement ignored
6/41 PL/SQL: ORA-01031: insufficient privileges
TEST@ORACLE10> connect test2/test2
Connected.
TEST2@ORACLE10> grant select on emp to test;
Grant succeeded.
TEST2@ORACLE10> connect test/test
Connected.
TEST@ORACLE10> create or replace function EXAMPLE return NUMBER as
  2  BEGIN
  3    declare
  4       result number;
  5    BEGIN
  6    select count(*) into result from test2.emp;
  7    return result;
  8    END;
  9  END;
10  /
Function created.
TEST@ORACLE10> select example from dual;
   EXAMPLE
         10Cheers