Consider the database Employee with underlined primary key,
Employee (employee_name, street, city)
Works (employee_name, company_name, salary)
Company (company_name, city)
Manages (employee_name, manager_name)
Assume that companies may be located in several city. We need to find all companies located in every city in which ‘Made Easy’ is located
Consider these statement about Query-1 and Query-2.