For loop or while loop in process flow

Question

Hi,
Is it possible to use a table as driver for a loop ?
I want to loop (the number of records in my table ) times and use the value of a certain column as parameter in my loop.
Thanks in advance
Carolineb

Answer 1

Carolineb,
I think this is possible - develop three PL/SQL-procedures
1) first procedure PR_GET_LAST_VAL - with one OUT parameter for getting ID of last record from your table (for example select max(id) from your_table)
2) second procedure PR_GET_FIRST_VAL - with one OUT parameter for getting ID of first record
3) third procedure PR_GET_NEXT_VAL - with one IN/OUT parameter for getting ID of next record (for example select min(id) from your_table where id>P_VALUE , where P_VALUE is a procedure parameter)
4) define two variable for process - V_CUURENT (loop variable which will be chaned with third procedure) and V_LAST_VALUE
5) in process flow before LOOP operator insert procedures PR_GET_FIRST_VAL and PR_GET_LAST_VAL and bind parameters to variables V_CUURENT and V_LAST_VALUE respectively
6) define condition for LOOP operator as V_CUURENT <= V_LAST_VALUE
7) in body of LOOP operator insert procedure PR_GET_NEXT_VAL and bind parameter to variable V_CUURENT
Hope my idea is clear.
Regards
Oleg