Pass parameter to a view

Question

We are using Oracle 7.3. Can I pass a parameter such as a date to a view ?? If so how?

Answer 1

Are you looking for something like this ?
SQL> ed
Wrote file afiedt.buf
  1  CREATE OR REPLACE VIEW MY_EMP_VIEW AS
  2  SELECT e.ename,e.deptno,d.dname
  3  FROM emp e,dept d
  4  WHERE e.deptno=d.deptno
  5* AND USERENV('CLIENT_INFO')=e.deptno
SQL> /
View created.
SQL> select *from MY_EMP_VIEW;
no rows selected
SQL> EXECUTE dbms_application_info.set_client_info(30);
PL/SQL procedure successfully completed.
SQL> select *from MY_EMP_VIEW;
ENAME                                   DEPTNO DNAME
ALLEN                                       30 SALES
WARD                                        30 SALES
MARTIN                                      30 SALES
BLAKE                                       30 SALES
TURNER                                      30 SALES
JAMES                                       30 SALES
999999                                      30 SALES
7 rows selected.Here, we can set dynamically the department number we want to view from the view created. These technique is used (in a more complex way) in multi-org system in Oracle Apps 11i with database 9i/10G.
But now VPD and FGA is more powerful with latest oracle database.