Before Report Function

Question

Hello,
I have the following function witch I need to run before report I mean when ever I press on the submit button (GO). The value returned from the function should be stored in an item i.e P2_Begining_Balance.
function BeforeReport return boolean is
var_pos     number(15,3) ;
var_neg     number(15,3) ;
beg_bal     number(15,3) ;
Begin
begin
select sum (nvl(amount,0)) into beg_bal
     from EMPLOYEE_TRANSACTI
     where ( type = 92 )
     and to_char(from_date,'YYYY')=to_char(date0,'YYYY')
     and FK_EMPLOYEENUMBER0=emp_code;
EXCEPTION
     WHEN NO_DATA_FOUND THEN
     beg_bal := 0;
end;
begin
     select      sum(nvl(amount,0)) into var_pos
     from      EMPLOYEE_TRANSACTI
     where      
TYPE=72
     and      fk_vouchervalue_da<from_date
     and      fk_vouchervalue_da>= trunc(from_date,'year')
     and      FK_EMPLOYEENUMBER0=emp_code;
EXCEPTION
     WHEN NO_DATA_FOUND THEN
     var_pos := 0;
end;
Begin     
     var_neg :=0;
     balance :=nvl(beg_bal,0) + nvl(var_pos,0) - nvl(var_neg,0);
     return(true);
EXCEPTION
     WHEN NO_DATA_FOUND THEN
     balance :=nvl(beg_bal,0) + nvl(var_pos,0) - nvl(var_neg,0);
          RETURN (TRUE);
end;
RETURN NULL; end;
Thanks,
Ribhi

Answer 1

Hi Ashif,
I'm trying to create an employee transaction report. This report looks like the following:
Date From: DD/MM/YYYY Date To: DD/MM/YYYY Employee Number: Go
Beginning Balance: 2025
Voucher No Voucher Date Description Debit Credit Total Balance
123 01/01/2008 xxxxxxxxx 1154.961 870.039
124 02/01/2008 bbbbbbbbb 870.039 000
125 05/03/2008 cccccccccc 3350 3350
The before report function suppose to run when ever I press the submit the report to calculate my beginning balance i.e 2025 witch is gonna be used im my report body calculation Total Balance.
Hope that explains what I'm trying to do.
Thanks for your help
Ribhi