Consider the relational database below, where the primary keys are underlined. employee (person-name, street, city) works (person-name, company-name, salary) company (company-name, city) manages (person-name, manager-name) Give a query for each of the following: a Find the company that has the smallest payroll. b Modify the database so that Jones now lives in Newtown. c Give all employees of the First Bank Corporation a 10 percent raise.
Consider the relational database below, where the primary keys are underlined. employee (person-name, street, city) works (person-name, company-name, salary) company (company-name, city) manages (person-name, manager-name) Give a query for each of the following: a Find the company that has the smallest payroll. b Modify the database so that Jones now lives in Newtown. c Give all employees of the First Bank Corporation a 10 percent raise.
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter8: Advanced Sql
Section: Chapter Questions
Problem 18RQ
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Question
Consider the relational
employee (person-name, street, city)
works (person-name, company-name, salary)
company (company-name, city)
manages (person-name, manager-name)
Give a query for each of the following:
a Find the company that has the smallest payroll.
b Modify the database so that Jones now lives in Newtown.
c Give all employees of the First Bank Corporation a 10 percent raise.
d Give all managers in database a 10 percent raise.
e Give managers in the database a 10 percent raise, unless the salary would be greater
than $100,000. In such cases, give only 3 percent raise.
f Delete all tuples in the works relation for employees of Small Bank Corporation.
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