How to implement createInstanceFromResultSet

Question

Hi All,
I need some example to implement createInstanceFromResultSet
my requirement is to Pull a another column in query reult from another table linked using xref.
currently its doing using POST-QUERY of forms 6i.
I tried created a VO based on two EO or SQL - Query but but are taking long time as sql query itself take a long time to show result.
POST-Query
select video_seller_id into temp_video from cm_sub_seller_xref where subscriber_id = :cm_subscribers.subscriber_id and video_seller_id is not null;
if temp_video is not null then
select ext_sys_seller_reference, name into :cm_subscribers.video_seller, :cm_subscribers.video_seller_description from cm_sellers where seller_id = temp_video;
VO Query that takes time
select cm_sub_seller_xref.VIDEO_SELLER_ID, cm_sellers.EXT_SYS_SELLER_REFERENCE, cm_sellers.NAME,cm_subscribers.subscriber_id
from cm_subscribers INNER JOIN cm_sub_seller_xref on cm_sub_seller_xref.SUBSCRIBER_ID=cm_subscribers.SUBSCRIBER_ID
INNER JOIN cm_sellers on cm_sellers.SELLER_ID= cm_sub_seller_xref.VIDEO_SELLER_ID
and rownum<100
Now looking to implement same using createInstanceFromResultSet

Answer 1

we use Forms Developer in Post-Query:
select dept.dept_name
into :EMP.nb_dept_name
from department dept
where dept.dept_id = :EMP.dept_id;
so, How to implement ADF createInstanceFromResultSet method?