Essay
The following tables form part of a database held in a Relational Database Management System:
Formulate the following queries in relational algebra, tuple relational calculus, and domain relational calculus.
(1) List all employees.
(2) List all the details of employees who are female.
(3) List the names and addresses of all employees who are Managers.
(4) Produce a list of the names and addresses of all employees who work for the 'IT' department.
(5) Produce a list of the names of all employees who work on the 'SCCS' project.
Correct Answer:

Verified
(1)
(2)
...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q1: Describe the main characteristics of the Relational
Q2: Given two relations R and S,
Q3: The Relational and CODASYL models are examples
Q4: Choose any four relational algebra operators and
Q5: From an SQL user's perspective, does the
Q6: The following tables form part of a
Q7: A relational database contains details about journeys
Q8: Describe the difference between a base relation