public LessonDal(xUnitSampleDbContext dbContext) : base(dbContext) { }
public StudentDal(xUnitSampleDbContext dbContext) : base(dbContext) { }
public LessonDal(xUnitSampleDbContext dbContext) : base(dbContext) { }
public StudentDal(xUnitSampleDbContext dbContext) : base(dbContext) { }