Provide working SQL DDL statements for the following database schema and queries EXERCISE CUSTOMER, Type, Firstname, Lastname, Address, City) INVENTORY(TD, ItemName, Type, MadeInStore, SupplierName, DailyAverageSold, Price) ORDERS, Customer-FI, Item-FK, Quantity, DeliveryDate) 1. Define the DDL to create the above tables, where Customer_FK is a referential integrity constraint from table ORDERS to table CUSTOMER Item FK is a referential integrity constraint from table ORDERS to table INVENTORY