Owb 10g R2

Question

I’m new to owb and I’m using owb 10g R2. I need to create a map to return a set of values based on the latest process’s date.
The map reads data from a view source and then using sorter operation to sort data by ORDER_NUMBER, DATE_PROCESS, ORDER_STATUS asc
ORDER_NUMBER     DATE_PROCESS     ORDER_STATUS
A00378091          06/23/2011               1
A00378091          06/25/2011               3
A00378091          07/15/2011               5
A00447816          05/17/2011               3
A00447816          05/20/2011               5
A00447816          06/25/2011               4
I use the aggregator group by order_number to get the max(date_process) but I don’t know how to get a value of order_status.
How do I crate a map to return the value as
A00378091          07/15/2011               5
A00447816          06/25/2011               4
I very appreciate your help, thanks.

Answer 1

Thanks Igor. I still don’t know how to do it. I’m sorry that I’m not clear that the set of data are not in a table yet.
The following is a list of steps in the map.
1. Read data from view (~ 900,000 rows)
2. Sort data using sorter operation.
Sorter operation ORDER_NUMBER, DATE_PROCESS, ORDER_STATUS asc (data are not in a table)
A00378091      06/23/2011      1
A00378091      06/25/2011      3
A00378091      07/15/2011      5
A00447816      05/17/2011      3
A00447816      05/20/2011      5
A00447816      06/25/2011      4
3. Aggregator group by order_number to get the max(date_process). I don’t know what expression on mrp_order_status to get the latest value based on max(date_process). I can’t use min/max(order_status) because it gave me a wrong order_status’s value
4. table (loading type Update/Insert)
order_number is a key on a table and I need to get the latest data of date_process and order_status from the sorter (or aggregator) to update/insert into a table. So the data in a table will contain
A00378091      07/15/2011      5
A00447816      06/25/2011      4
I never use table operator, I try to find the site so I can learn more about it. Would you please explain step by step? I very appreciate your help.