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Sq lactividades


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Sq lactividades

  1. 1. Genera los siguiente resultadosEjercicio AEjercicio B
  2. 2. Ejercicio C
  3. 3. Ejercicio ASELECT COUNT( Clave ), MateriaFROM Calificaciones, MateriasWHERE Materias.Clave = Calificaciones.ClaveORDER BY Materia ASCEjercicio BSELECT Materia, CalificacionFROM Materias, CalificacionesWHERE Calificacion > 80ORDER BY Calificacion ASC