Adding a computation in my form

Hello Experts from around the world :)
Well i am having this challenge and i cant get my head around it at the moment.
I have to create a computation as follows:
i have a field that i have to enter values (field A)
then another field that will have to perform a cummulative of the values of field A, store it in my table and display it in my form.
anyone has an idea of how i can perform that plz
thanks

I have found that you can use "Oracle Analytical functions" to calulate values like this on the fly and then store them as needed by comparing the calculated value to the stored value.
It will take some testing until you get familiar with the code but it is very powerful.
This link is just one example of the many web pages that can introduce you to "Oracle Analytical functions"
http://www.orafaq.com/node/55
It could be a scheduled daily, hourly, etc...
i.e.
select
my_col1_data -- one or more fields out side of the columns FIELD_A and FIELD_B
, FIELD_A
, FIELD_B
, sum(FIELD_A) over (partition by some_columns_that_define_group
order by some_columns_as_needed ) FIELD_B_CALC
from my_table ;
Notice that a "group by" clause is not used with the {sum... over...} "Oracle Analytical function".Good Luck... :)
v/r
RJones

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Adding a computation in my form

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