Write SQL queries for the following :
Display each employee‚??s name and date of joining.
Display employees earning more than Rs.5,000. Label the column name ‚??Employee‚??.
Display all employee names and employee numbers in the alphabetical order of names.
Display all employee names containing the letter ‚??S‚??.
Display the employees hired in 1981.
Display the minimum and maximum salary.
Display the list of employees along with their department name and its manager.
Display the number of different employees listed for each department.
Delete the records of all the employees hired in 1981 from EMP table.
Update the salary of all the employees to Rs. 10,000.