How to get the total record in the block before save them

Question

Hello,
I need to recalculate the amout for all records in one block before saving them.
How can I get it?
Thanks for your helping

Answer 1

You write a loop, something like this:
Go_block('B1');
If not form_success then
  Raise Form_Trigger_failure;
End if;
First_Record;
If not form_success then
  Raise Form_Trigger_failure;
End if;
Loop
  If :system.record_status in('CHANGED','INSERT') then
    -- modify the record here--
  End if;
  Exit when :System.Last_Record = 'TRUE';
  Next_Record;
End Loop;
First_Record;But be very careful-- If your block can fetch a large number of rows, (over 100), this loop can take a long time, and you should not use this method. The loop will continue fetching more rows from the database until all rows satisfying the query are retrieved.