public static void Main()
new UserTable() {UserId = 1, Name = "James", Department = "Sales", Salary = 100},
new UserTable() {UserId = 2, Name = "Frank", Department = "Sales", Salary = 110},
new UserTable() {UserId = 3, Name = "Will", Department = "Ops", Salary = 90},
new UserTable() {UserId = 4, Name = "Dave", Department = "Ops", Salary = 80},
public int UserId { get; set; }
public string Name { get; set; }
public string Department { get; set; }
public double Salary { get; set; }