Question: 2) Use query tree to optimize the following query SELECT Order Num, Amount, Company, Name, City FROM Orders, Customers, Salesreps, Offices WHERE Cust= Cust Num

2) Use query tree to optimize the following query SELECT Order Num, Amount, Company, Name, City FROM Orders, Customers, Salesreps, Offices WHERE Cust=

2) Use query tree to optimize the following query SELECT Order Num, Amount, Company, Name, City FROM Orders, Customers, Salesreps, Offices WHERE Cust= Cust Num AND Cust Rep = Empl Num AND Rep Office = Office AND Amount >= 10000 AND Region = "Eastern

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