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You have a customer table called CUSTOMERS and an order table called ORDERS: CustomerID 123 234 301 345 etc CustomerName CustomerCit Alpine Co Zebra Inc H & M Nonce & Co Brookl Aspen Brookl Wilson CustomerState NY CO NY PA OrderNum CustomerID OrderDate OrderAmount HasItBeenPaid A111 A156 A211 A213 345 345 123 345 02/12/2013 5000.00 03/11/2013 4000.00 02/17/2013 6000.00 12/11/2013 3000.00 etc Using these tables, write one or more SQL statements for each of the following: a. Write the create table (DDL) statement for the CUSTOMERS table. Show all integrity constraints