Select Niveles.Codigo, Niveles.Nombre, Sueldo.Monto
From Empleado As Empleado
Inner Join Empleos As Empleos
On Empleado = Empleado.Cedula = Empleos.Cedula
Inner Join Cargos As Cargos
On Empleos.Cod_Cargo = Cargos.Codigo
Inner Join Niveles As Niveles
On Cargos.CodigoNivel = Niveles.Codigo
Left Join (
Select Cedula, Sum(VALORDV ) As Monto
From nomina
where codigoc = '010'
Group By Cedula
) Sueldo
On Empleado.Cedula = Sueldo.Cedula