Why image upload not working

I want to upload image into public folder and database in laravel but I am facing some problem, Image is uploading into public folder but image is not saving into database. Can anyone help me telling where it is going wrong? Here is my code.

controller

public function clientaction(Request $request)
   {


        $validation = validator::make($request->all(),[
          'select_file' =>'required|image|mimes:jpeg,png,jpg,gif|max:2048'
        ]);
        if($validation->passes())
        {
         $image = $request->file('select_file');
         $new_name = rand() . '.' . $image->getClientOriginalExtension();
         $image->move(public_path('images'), $new_name);
         return response()->json([
          'message'   => 'Image Upload Successfully',
          'class_name'  => 'alert-success'
         ]);


        }
        else
         {
          return response()->json([
          'message'   => $validation->errors()->all(),
         'class_name'  => 'alert-danger'
      ]);
     }

     DB::table('logo-clients')->insert([

      'select_file'=> $new_name
  ]);
   }

Route

Route::get('DashBoard','AdminController@DashBoard');


Route::get('Clients','AdminController@clients');
Route::post('/ajax_upload/action','AdminController@clientaction')->name('ajaxupload.action');