Create a user and use the objects of another Shema

Question

Hi all oracle`s gurus
i need a little help .....
i, create a shema named "a" that the owner is user_dba and here there are all objects of the aplication but i want all other users of the app can use those objects; the users are created in the database ,
Thanks

Answer 1

I would be very leary about granting privileges to PUBLIC, particularly privileges other than SELECT, because most systems end up getting a few special-purpose accounts that shouldn't see everything.
The standard approach is
- Create a role
CREATE ROLE my_application_role;- Grant appropriate privileges to that role. This generally takes the form of a PL/SQL block initially
BEGIN
  FOR x IN (SELECT * FROM dba_tables WHERE owner = <<schema owner>>)
  LOOP
    EXECUTE IMMEDIATE
      'GRANT select, insert, update, delete ' ||
      '    ON <<schema owner>>.' || x.table_name ||
      '    TO my_application_role';
  END LOOP;
END'- Grant that role to the user(s) that will be connecting to the database,
GRANT my_application_role TO some_user- Create appropriate public synonyms for the various objects. Again, this can be a PL/SQL block and can be combined with the block that grants privileges
BEGIN
  FOR x IN (SELECT * FROM dba_tables WHERE owner = <<schema owner>>)
  LOOP
    EXECUTE IMMEDIATE
      'CREATE PUBLIC SYNONYM ' || x.table_name ||
      '    FOR <<schema owner>>.' || x.table_name;
  END LOOP;
END'As an alternative to public synonyms, you can set the CURRENT_SCHEMA attribute (potentially in a login trigger) to SCHEMA_OWNER when the users you want to access these objects log in.
Justin