Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard’s 0 key was broken until after completing the calculation. She wants your help finding the difference between her miscalculation (using salaries with any zeros removed), and the actual average salary.
Write a query calculating the amount of error (i.e.: actual – miscalculated average monthly salaries), and round it up to the next integer.
Input Format
The EMPLOYEES table is described as follows:
Note: Salary is per month.
Constraints
1000 < Salary < 105
Sample Input
Sample Output
2061Explanation
The table below shows the salaries without zeros as they were entered by Samantha:
Samantha computes an average salary of 98.00. The actual average salary is 2159.00.
The resulting error between the two calculations is 2159.00 – 98.00 = 2061.00. Since it is equal to the integer 2061, it does not get rounded up.
Solution Implementation
SELECT CEIL(AVG(Salary)-AVG(REPLACE(Salary,'0','')))
FROM EMPLOYEES;