Consider this query that retrieves from the text’s Company database the SSN and last name of employees who earn more than 10000 and have a daughter and a son SELECT ssn, lname FROM dependent x INNER JOIN employee e ON (x.essn = e.ssn) INNER JOIN dependent y ON (y.essn = e.ssn) WHERE x.relationship = 'Son’ and y.relationship = 'Daughter’ and e.salary > 10000 Create a query tree for the above
Consider this query that retrieves from the text’s Company database the SSN and last name of employees who earn more than 10000 and have a daughter and a son SELECT ssn, lname FROM dependent x INNER JOIN employee e ON (x.essn = e.ssn) INNER JOIN dependent y ON (y.essn = e.ssn) WHERE x.relationship = 'Son’ and y.relationship = 'Daughter’ and e.salary > 10000 Create a query tree for the above
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Consider this query that retrieves from the text’s Company
10000 and have a daughter and a son
SELECT ssn, lname
FROM dependent x
INNER JOIN employee e ON (x.essn = e.ssn)
INNER JOIN dependent y ON (y.essn = e.ssn)
WHERE x.relationship = 'Son’
and y.relationship = 'Daughter’
and e.salary > 10000
Create a query tree for the above
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