thử cái này
SELECT e.employeeId,e.firstName,e.lastName,s.ShoeName,s.ShoeColor,s.ShoeBrand
FROM Employee e
LEFT JOIN Shoe s
ON e.employeeID = s.Employee_employeeID
thử cái này
SELECT e.employeeId,e.firstName,e.lastName,s.ShoeName,s.ShoeColor,s.ShoeBrand
FROM Employee e
LEFT JOIN Shoe s
ON e.employeeID = s.Employee_employeeID