Present an SQL query to fetch unique values of department from the Worker table in uppercase using the alias name 

 

Present an SQL query to print the first three characters of FIRST_NAME from the worker table

 

Show an SQL query to print all workers' details from the Worker table order by FIRST_NAME Ascending and DEPARTMENT Descending. 

 

Present a SQL query to find the sum of all the salaries of the workers. 

Present a SQL query to find all the workers that have received the bonus. You should not show the same worker twice if they have received more than one bonus.