SSRS订阅

Question

我正在尝试每周刷新数据并每周运行订阅。 我的问题是，

如果电子邮件已经发送给某人（记录在数据集中），而下周该数据集中也出现了同一个人，那么我不想为他发送订阅，而只想为新个人发送电子邮件。

示例

让我们说：

运行查询时，上周返回了三条记录：

Employee Id Employee    Date
1001    Saifa   07-08-2018
1002    Oliver  06-08-2018
1003    Varun   07-08-2018

本周查询返回2条记录：

Employee Id Employee    Date
1001    Saifa   13-08-2018
1005    Natasha 13-08-2018

该电子邮件仅应发送给Natasha，这怎么可能？ 请帮忙。

谢谢！ 信德省

Answer 1

我想你想要

select t.*
from (select t.*,
             min(date) over (partition by employeeid) as mindate
      from t
     ) t
where mindate = '2018-08-13'

Answer 2

这将排除具有上一个日期记录的员工。

public class MainViewModel : BindableBase
{
    private readonly List<IViewModel> _viewModelCollection;

    private ObservableCollection<IViewModel> _vmObservable;
    public ObservableCollection<IViewModel> VmObservable
    {
        get { return _vmObservable; }
        set
        {
            SetProperty(ref _vmObservable, value);
            RaisePropertyChanged();
        }
    }


    private IViewModel _activeVm;
    public IViewModel ActiveVm
    {
        get { return _activeVm; }
        set
        {
            SetProperty(ref _activeVm, value);
            RaisePropertyChanged();
        }
    }

    public DelegateCommand SetOneCommand { get; set; }
    public DelegateCommand SetTwoCommand { get; set; }

    public MainViewModel()
    {
        SetOneCommand = new DelegateCommand(SetOne);
        SetTwoCommand = new DelegateCommand(SetTwo);
        VmObservable = new ObservableCollection<IViewModel>();

        _viewModelCollection = new List<IViewModel>()
        {
            new ViewModel1(),
            new ViewModel2(),
            new ViewModel3()
        };
    }

    private void SetOne()
    {
        VmObservable.Clear();
        VmObservable.Add(GetViewModel(typeof(ViewModel1)));
        VmObservable.Add(GetViewModel(typeof(ViewModel2)));
        VmObservable.Add(GetViewModel(typeof(ViewModel3)));
    }

    private void SetTwo()
    {
        VmObservable.Clear();
        VmObservable.Add(GetViewModel(typeof(ViewModel2)));
        VmObservable.Add(GetViewModel(typeof(ViewModel3)));
    }

    private IViewModel GetViewModel( Type viewModelType )
    {
        return _viewModelCollection.Find(x => x.GetType().Equals(viewModelType));
    }
}

NOT IN将检查员工的先前日期。