Compare time slot in dates while making drag and drop..

Question

Hi,
The drag and drop is working fine without conditions, but I have to check the time slots between two dates. If the time of both date are same it should not dropped else it can drag and drop. I use the code below, but not getting executed according to condition.. Please provide suggestion and ideas to get it executed..
declare
l_date_value varchar2(150) := apex_application.g_x01;
l_primary_key_value varchar2(150) := apex_application.g_x02;
l_full_time varchar2(150);
l_time_a varchar2(150);
l_time_b varchar2(150);
begin
select
ltrim(replace(to_char(resv_start_date,'hhmiAM'),'00',' '),'0')||','|| ltrim(replace(to_char(l_date_value ,'hhmiAM'),'00',' '),'0')
into l_full_time
from reservation
where resv_no=l_primary_key_value;
select SUBSTR(l_full_time, 1 ,INSTR(l_full_time, ',', 1, 1)-1) into l_time_a from dual;
select SUBSTR(l_full_time, INSTR(l_full_time,',', 1, 1)+1)into l_time_b from dual;
begin
if l_time_a<> l_time_b then
update reservation set RESV_START_DATE = to_date(l_date_value,'RRRRMMDDHH24MISS') where Resv_no= l_primary_key_value;
end if;
exception when others then
Raise_application_error(-20001,'Error'||SQLERRM);
end;
end;
Thanks..

Answer 1

First 3 .as are the component
source. in the last test.mxml file i have written the drag and drop functionality.
can any help me?? please