(MEV) Virtual private database issue?
Hi allI have a question about the DPV, I want to implement column-level security, senario is: (Oracle 9i, 10 g)
TABLE
=======
CUSTOMER
(cust_id, name, address, phone, e-mail) etc.
There is a user "PIN" in which all objects are created and stored, and other users has the granting of rights through synonyms created on their schemes,
My question is: all users can access / retrieves all the rows in the customer table, but they should not see the address fields and phone?, these 2 fields must be NULL for them, is it possible to implement this security through CAE policy?
quick response would be appreciated.
concerning
Qamar
Published by: qamarsyed on November 5, 2008 12:43
In the same example, I created the function to exclude all the numbers of Department of DEPT table and I got what you're looking for. But according to your requirement, this function can be expensive.
SQL> ed
Wrote file afiedt.buf
1 CREATE OR REPLACE FUNCTION pf_job (oowner IN VARCHAR2, ojname IN VARCHAR2)
2 RETURN VARCHAR2 AS
3 con VARCHAR2 (200);
4 BEGIN
5 con := 'deptno not in (select deptno from dept)';
6 RETURN (con);
7* END pf_job;
SQL> /
Function created.
And here is the result of the other user.
SQL> /
DEPTNO EMPNO ENAME SAL COMM
---------- ---------- ---------- ---------- ----------
20 7369 SMITH
30 7499 ALLEN
30 7521 WARD
20 7566 JONES
30 7654 MARTIN
30 7698 BLAKE
10 7782 CLARK
20 7788 SCOTT
10 7839 KING
30 7844 TURNER
20 7876 ADAMS
30 7900 JAMES
20 7902 FORD
10 7934 MILLER
14 rows selected.
SQL>
Tags: Database
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