Question

I’ve just started using Oracle ApEx and before I get too deep into it, I wanted to make sure certain functionality is built in.
Is there an easy way for me to have a report that expands and collapses nodes?
For example, Lets suppose I have a table:

STATE   CITY  POPULATION

And I want to present the user with a report where one row is showing

CALIFORNIA      100000000

And then they click on a (+) and it expands to

CALIFORNIA
    LOS ANGELES    10387487
    SANFRANCISCO     9278437

Etc.
I’ve just been skimming through some tutorials, and I haven’t seen anything like that (which is fairly basic, I would think)

Thanks!

Answer 1

You can achive this using an APEX tree region as in my demo here:

First I created a view that unioned the state and city data together in the way a tree requires:

create or replace view state_city_view as
select state_name as name, '' as parent_name 
from state
union all
select city_name || ' ' || population name, state_name as parent_name
from city;

Then I used that as the source of a Tree Region like this: