The objective of this exercise is to generate cascading
parameter in APEX reports.
Prerequisite: A report on table EMP.
We need to create another HTML region with two page items (parameters)
and a button to submit the parameters entered.
When we choose the first parameter value, the second should
have to be refreshed automatically based on first parameter value. We take
DEPTNO as first parameter and EMPNO as second parameter. We need to edit and set
the Cascading LOV Parent Item(s) of the EMPNO parameter.
When we select the value of DEPTNO, the values of EMPNO
select list gets changed automatically.
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