Save image url to SqLite database in windows 8.1 Mobile using FilePicker

I am using the following file picker to capture or select an image from the gallery. I want to save the image URL to the Sqltie database. Can you guide me how to do so.

FilePicker

public async void pickPhoto()
{
    FileOpenPicker openPicker = new FileOpenPicker();
    openPicker.ViewMode = PickerViewMode.Thumbnail;
    openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
    openPicker.FileTypeFilter.Add(".jpg");
    openPicker.FileTypeFilter.Add(".jpeg");
    openPicker.FileTypeFilter.Add(".png");
    // Launch file open picker and caller app is suspended and may be terminated if required
    openPicker.PickSingleFileAndContinue();

}
public async void ContinueFileOpenPicker(FileOpenPickerContinuationEventArgs args)
{
    if (args.Files.Count > 0)
    {

        var stream = await args.Files[0].OpenAsync(Windows.Storage.FileAccessMode.Read);
        var bitmapImage = new Windows.UI.Xaml.Media.Imaging.BitmapImage();
        await bitmapImage.SetSourceAsync(stream);
        imagePreivew.Source = bitmapImage;
    }
    else
    {
        var messageDialog = new MessageDialog("Operation cancelled.");
    }

}