Consider the below schemas from a relational database, where the primary keys are underlined? :

Employee (EmployeelD, Street, City)

Works (EmployeelD Company-name, Salary)

Company (Company-name, City)

Manages (ManagerlD, Manager-name)

Considering the above schemas, write an expression in SQL for each of the following

queries:

a. Find the lDs of all employees who work for the INTEL CORP.

b. Delete all tuples in the works relation for employees of INTEL CORP.