QUESTION 4 – DISTRIBUTED QUERY PROCESSING Implement the query below and explain how the processing of display the eBayExpress price display ? SELECT c.Name, p.Title, sc.Quantity, p.eBayExpressPrice, s.Name FROM ShoppingCart sc, Product p, Customer c, Seller s WHERE sc.CustomerID = c.CustomerID AND sc.ItemNumber = p.ItemNumber AND sc.OrderStatus = 'active' AND c.Country = 'USA' AND

Oracle 12c: SQL
3rd Edition
ISBN:9781305251038
Author:Joan Casteel
Publisher:Joan Casteel
Chapter4: Constraints
Section: Chapter Questions
Problem 11MC: In the initial creation of a table, if a UNIQUE constraint is included for a composite column that...
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QUESTION 4 – DISTRIBUTED QUERY PROCESSING
Implement the query below and explain how the processing of display the
eBayExpress price display ?
SELECT c.Name, p.Title, sc.Quantity,
p.eBayExpressPrice, s.Name
FROM ShoppingCart sc, Product p,
Customer c, Seller s
WHERE sc.CustomerID =
c.CustomerID AND
sc.ItemNumber =
p.ItemNumber AND
sc.OrderStatus = 'active'
AND c.Country =
'USA' AND
p.SellerID =
s.SellerID
1. Show the operator tree without optimization.
2. Show the optimized operator tree.
3. Please refer to the optimized operation tree (after localization and reduction)
Show the distributed query plan .

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