Pessoal, alguem pode dar uma explicadinha sobre a questão abaixo ?
Which of the following statements are equivalent? (Choose two answers.) A. select employee_id from employees where salary < all (select salary from employees where department_id=10); B. select employee_id from employees where salary < (select min(salary) from employees where department_id=10); C. select employee_id from employees where salary not >= any (select salary from employees where department_id=10); D. select employee_id from employees e join departments d on e.department_id= d.department_id where e.salary < (select min(salary) from employees) and d.department_id=10; Não consegui entender pra valer ainda as relação de comparação usando: < ANY, > ANY, > ALL, < ALL. Obrigado! -- Atc, Ygor Thomaz Website: http://ctrlclabs.blogspot.com/ "Olho por olho e o mundo acabará cego"(Mahatma Gandhi).
