Labels:text | screenshot | font | rectangle | line | number OCR: FIGURE 6: Sometimes a trigger calls a procedure in a constraints package that enforces the rules of another table. CUSTOMER Trigger check 1 | Customer_Cons_Pkg :old.cust_id :old.slale mew.slole Purchase Order_Cons_Pkg :new.po_amount Procedure chforces rulas PUR ORDER :new.po_dale check_ 1. only on purchase orders Trigger #but may be coted from (INSERT, UPDATE] :new.po_omcent check 2 any Irigger. :new.po_date
