grant privileges to role - oracle

Question

The question is:
Create a "UnivUser" role, and give this role the privileges of select, update, insert, delete, and execute pl / sql packages and sequences. This user will not be able to do anything other than these actions, to help you, you can search in the dialog of SqlDevelopp privileges for a user.
the execute, select and delete work for me using these commands:
GRANT select_catalog_role to UnivUser
GRANT execute_catalog_role to UnivUser
GRANT delete_catalog_role to UnivUser
but for insert and update it does not work for me I don't know how to do it or maybe I did not understand the question.

Answer 1

I don't know whether you misunderstood the question, but I know that I'm not sure whether you wrote the whole question.
Privileges you granted are related to access to SYS-owned objects, and I really can't tell whether that's what you should do.
From my point of view, you should stick to object privileges, i.e. grant what you specified on your own objects to that role. For example (created in my 11g XE database):
Grant Scott privilege to create roles:
SQL> connect sys/pwd#xe as sysdba
Connected.
SQL> grant create role to scott;
Grant succeeded.
Create a role and grant certain privileges to it:
SQL> connect scott/tiger
Connected.
SQL> create role univuser identified by univuser;
Role created.
SQL> grant select, update, insert, delete on emp to univuser;
Grant succeeded.
SQL> create or replace procedure p_test is begin null; end;
2 /
Procedure created.
SQL> grant execute on p_test to univuser;
Grant succeeded.
SQL> create sequence seq_test;
Sequence created.
SQL> grant select on seq_test to univuser;
Grant succeeded.
List of privileges UNIVUSER has:
SQL> select table_name, privilege from role_tab_privs where role = 'UNIVUSER';
TABLE_NAME PRIVILEGE
------------------------------ ----------------------------------------
EMP DELETE
EMP INSERT
EMP UPDATE
EMP SELECT
P_TEST EXECUTE
SEQ_TEST SELECT
6 rows selected.
Now, grant that role to another user in my database:
SQL> grant univuser to mike;
Grant succeeded.
Let's see whether Mike can (or can not) do something with Scott's objects; don't forget to SET ROLE:
SQL> connect mike/lion
Connected.
SQL> set role univuser identified by univuser;
Role set.
SQL> select count(*) from scott.emp;
COUNT(*)
----------
12
SQL> select scott.seq_test.nextval from dual;
NEXTVAL
----------
2
SQL> exec scott.p_test;
PL/SQL procedure successfully completed.
SQL>
Seems to be OK.
[EDIT: write SQL that writes SQL]
SQL> select 'grant select, insert, update, delete on ' || table_name || ' to univuser;'
2 from user_tables;
'GRANTSELECT,INSERT,UPDATE,DELETEON'||TABLE_NAME||'TOunivuser;'
-------------------------------------------------------------------------------
grant select, insert, update, delete on EMP to univuser;
grant select, insert, update, delete on BONUS to univuser;
grant select, insert, update, delete on SALGRADE to univuser;
grant select, insert, update, delete on DEPT to univuser;
SQL>
SQL> select 'grant execute on ' || object_name || ' to univuser;'
2 from user_objects
3 where object_type in ('PROCEDURE', 'FUNCTION', 'SEQUENCE');
'GRANTEXECUTEON'||OBJECT_NAME||'TOUNIVUSER;'
--------------------------------------------------------------------------------
grant execute on EMPTY_TABLE to univuser;
grant execute on SIEROT to univuser;
grant execute on P_RC to univuser;
grant execute on F_RC to univuser;
grant execute on MYFUNCTION to univuser;
grant execute on F_RET to univuser;
grant execute on F_REGNUM to univuser;
grant execute on F_COUNT_OF_SUNDAYS to univuser;
grant execute on P_TEST to univuser;
grant execute on F_TEST to univuser;
grant execute on MTJ_ID_SEQ to univuser;