Globle table data problem with pragma autonomous_tranaction

Question

hi gurus,
i have  two globle table both having   preserve  row on commit
g_emp ;
g_hop_brk ;
in  procedure
   i m populating   g_emp  then  on this table  doing some manipulation
   loop
i m calling function  which  have  pragma autonomous_tranaction;
               this function is
              is now referring  g_emp ;
               inserting into  g_hop_brk  ;
           commit ;
loop end
  now fetching data from  g_hop_brk   ;
end procedure ;
with this logic i m not  getting value  when loop runs first time but from 2nd time i m getting value ,
please tell me why its happening ,
how to make work
thanks

Answer 1

On the second iteration of the loop, the parent transaction has committed after the first iteration, so some data will be visible.
If you are merely trying to log the value the function is going to return, the function itself should not be an autonomous transaction. A separate procedure should be created to log the return value, that procedure should be an autonomous transaction, and the procedure should be called just before you return, i.e.
CREATE OR REPLACE PROCEDURE log_something( p_return_val IN NUMBER )
  PRAGMA autonomous_transaction
IS
BEGIN
  INSERT INTO log_table ...
  commit;
END;
CREATE OR REPLACE FUNCTION your_function( some_parameters )
  RETURN something
IS
  l_ret_val number;
BEGIN
  log_something( l_ret_val );
  RETURN l_ret_val;
END;The procedure never has to query any tables, so the fact that it can't see the parent's uncommitted changes is irrelevent.
Justin