Question 14295 – Database-Management-System
December 19, 2023Question 9186 – Data-Structures
December 20, 2023Question 14308 – Database-Management-System
The relation scheme given below is used to store information about the employees of a company, where empId is the key and deptId indicates the department to which the employee is assigned. Each employee is assigned to exactly one department.
emp(empId, name, gender, salary, deptId)
Consider the following SQL query:
select deptId, count (*)
from emp
where gender = “female” and salary > (select avg(salary) from emp)
group by deptId;
The above query gives, for each department in the company, the number of female employees whose salary is greater than the average salary of
Correct Answer: C
The given SQL query is:
Select deptId, count(*)
from emp
where gender = “female” and
group by deptId
- The inner query will return the average salary of the emp table.
- Hence, the given query will return the deptId wise count of female employees whose salary is greater than the average salary of the emp table.