Can we insert image that is read as url in sqlite using javascript?

Hi I am developing a cross-platform application using cordova. I am trying to insert image within sqlite. I am reading image with reader.readAsUrl, This returns some data like this in base64 data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQAAAA......, I used firebase to upload image using this following code It really works so fine.

function previewFile()
        {
          var preview = document.querySelector('img');
  var file    = document.querySelector('input[type=file]').files[0];
  var reader  = new FileReader();


  reader.onloadend = function () {
    var image = reader.result;
    if(file.type.match('image.*'))
    {
    preview.src = reader.result;
   fullimage =reader.result;
}
else
{
  alert("select an image file");
}
  }

  if (file) {
    reader.readAsDataURL(file);
  } else {
    preview.src = "";
  }
        }

Html code:

<input type="file" onchange="previewFile()"><br>
<img src="" height="200" alt="Image preview...">

Now when I try the same with Sqlite I am not able to insert this image.Can I use this data to insert into database. Can someone help me? Thanks in advance..