ISRO exam 2016 – Question 57 with Solution
In this video we are going to discuss another question which was asked in the exam of ISRO
- Given the relations
- employee (name, salary, dept-no), and
- department (dept-no, dept-name,address),
Which of the following queries cannot be expressed using the basic relational algebra operations (σ, π, ×, ⋈, ∪, ∩, −)?
- Department address of every employee
- Employees whose name is the same as their department name
- The sum of all employees’ salaries
- All employees of a given department
