2) Create in PL/SQL a stored procedure called 'Del Details' to delete the record of orderedProduct table for which it receives as input the order numbe (orderNO) and the product number (productNO). 3)Create in PL/SQL a stored Funct called 'productPerOrder' to return the number of products placed for any order its number is given as input. 4) Write a Trigger called 'changeCustomer Category'. This trigger should be invoked before any update of customer balance ir customer table. Its job is to modify the category of a customer from B2 to B1 and from to C1 when a customer's balance status drops below a certain threshold (-10000).

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