DATABASE SYSTEM CONCEPTS (LOOSELEAF)
7th Edition
ISBN: 9781260515046
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 3, Problem 16E
Explanation of Solution
a.
SQL Query:
The SQL query to find the ID and name of each employee who lives in the same city as the location of the company for which the employee works is as follows:
select e...
Explanation of Solution
b.
SQL Query:
The SQL query to find the ID and name of each employee who lives in the same city and on the same street as does her or his manager is as follows:
select p...
Explanation of Solution
c.
SQL Query:
The SQL query to find the ID and name of each employee who earns more than the average salary of all employees of her ...
Explanation of Solution
d.
SQL Query:
The SQL query to find the company, which has the smallest payroll is as follows:
select company_name
from works
group by company_name
having sum(sa...
Expert Solution & Answer
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Chapter 3 Solutions
DATABASE SYSTEM CONCEPTS (LOOSELEAF)
Ch. 3 - Prob. 1PECh. 3 - Prob. 2PECh. 3 - Prob. 3PECh. 3 -
Suppose that we have a relation marks(ID, score)...Ch. 3 - Suppose that we have a relation marks(ID, score)...Ch. 3 -
The SQL like operator is case sensitive (in most...Ch. 3 - Prob. 7PECh. 3 - Prob. 8PECh. 3 - Prob. 9PECh. 3 - Prob. 10PE
Ch. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Prob. 13ECh. 3 -
Consider the insurance database of Figure 3.17,...Ch. 3 - Prob. 15ECh. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - Prob. 18ECh. 3 -
List two reasons why null values might be...Ch. 3 - Prob. 20ECh. 3 - Prob. 21ECh. 3 - Prob. 22ECh. 3 - Prob. 23ECh. 3 - Prob. 24ECh. 3 - Prob. 25ECh. 3 - Prob. 26ECh. 3 - Using the university schema, write an SQL query to...Ch. 3 - Prob. 28ECh. 3 - Prob. 29ECh. 3 - Prob. 30ECh. 3 - Prob. 31ECh. 3 - Prob. 32ECh. 3 - Prob. 33ECh. 3 - Prob. 34ECh. 3 - Prob. 35E
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