How to get approver with SO in PLD

Hi expert

I have an approvel procedure on sales order.

I would like to get approver in PLD, but how to get them?

I know the data save in OWDD/WDD1 table, and I can use

Alt key to pull the all table, but I don't know how to join them well. Have any body meet the sam problem? Any body have the solution?

Glen