perators discussed in this chapter. Also show the result of each query as it would apply to the database state of Figure 3.6. - List the managers who are controlling more than 2 projects. - List the names of employees all of whose dependents were born before 1990. - Retrieve the average salary of employees who work totally no less than 30 hours on projects
perators discussed in this chapter. Also show the result of each query as it would apply to the database state of Figure 3.6. - List the managers who are controlling more than 2 projects. - List the names of employees all of whose dependents were born before 1990. - Retrieve the average salary of employees who work totally no less than 30 hours on projects
Chapter3: Data Representation
Section: Chapter Questions
Problem 3RP
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Question
Specify the following queries on the COMPANY relational
- List the managers who are controlling more than 2 projects.
- List the names of employees all of whose dependents were born before 1990.
- Retrieve the average salary of employees who work totally no less than 30 hours on projects.
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