Help with oracle forms

Question

Hi everyone
i don't know anything in oracle forms , and all what i want to do is the following :
I have a table called 'fp_log' with 2 columns 'ID' and "UIS'
I have another table called 'EMP' with a column 'FP' which is a 'LONG RAW' type and another column 'EMP_ID'
i have a button and when i press the button with F11 i need to write code into it , the code should do the following :
check if the column 'FP' in table 'EMP' has a value or is it a null when EMP_ID = x for example
if it has a value and not a null i need to check if column 'UIS' in table 'FP_LOG' where ID in 'FP_LOG' is equal 1 is equal to 'EMP_ID' to show a message "Wrong FP" then exit the code without completing the rest of it .
in other language :
If (FP from EMP where EMP_ID = x) is not empty then
-- if (UIS from FP_LOG where ID=1) != (EMP_ID) then
-- -- message "WRONG FP"
-- -- exit the button function without doing the rest of the code
-- end if
end if
it is an easy job for who knows oracle at least a little :-)
and thanks in advance :-)

Answer 1

You can try the follow code:
declare
temp_fp long raw := null;
temp_uis number := null;
begin
select fp
into temp_fp
from emp
where emp_id = x;
if temp_fp is not null then
select uis
into temp_uis
from fp_log
where id = 1;
if temp_uis != x then
message('wrong fp');
message(' ',no_acknowledge);
end if;
end if;
end;
Hope it helps you,
Fabrizio.
If this answer is helpful or correct, please mark it. Thanks.