Is not really a warm up!
we wait for the computer (electronic instrument) to load or process all the data in order to operate properly as its supposed to!
Answer:
WITH deptsalary AS (
SELECT dept, SUM(salary)
FROM emp
GROUP BY dept)
SELCT *
FROM deptsalary
Explanation:
deptsalary is temporary table.
dept and its respective sum of salary is to be displayed
First you Format Hard drive to remove all data then you will have to set up a storage partition for the new Operating System can load start up instructions. Usually your OS will prompt you for permission and order to establish partition storage size.