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Який із наведених запитів є некорельованим підзапитом ? А) SELECT Name ...
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Який із наведених запитів є
некорельованим підзапитом?А)SELECT Name
FROM Employees E
WHERE EXISTS (SELECT *
FROM Departments D
WHERE D.DepartmentID = E.DepartmentID
AND D.Location = 'Lviv'
)
Б)SELECT Name
FROM Employees E
WHERE E.Salary > (SELECT AVG(Salary)
FROM Employees
WHERE DepartmentID = E.DepartmentID
)
В)SELECT Name
FROM Employees E
WHERE EXISTS (SELECT *
FROM Salaries S
WHERE S.EmployeeID = E.EmployeeID
AND S.Amount > 50000 )
Г)SELECT Name
FROM Employees
WHERE Salary > (SELECT AVG(Salary)
FROM Employees
)
)
100%
0%
0%
0%