Backendless 3 console

Data Service
1

How can I get all photos from console, which don’t have relations
in Backendless 4 I use Advertisement[photos].objectId =null, but in Backendless 3 it doesn’t work

photos.png

2

it is the same syntax. Please post the entire screenshot, partial screenshots lack context and make it hard (or in this case impossible) to help you.

3

I attached 3 photos

  1. Backendless 3, where I get “Invalid where clause null”
  2. Backendless 4 where I get photos with relations (!null)
    3 Backendless 4 where I get photos without relations(null)

photos.png
photos.png1171×661 79.9 KB

backendless 4!null.png
backendless 4!null.png1507×515 77.3 KB

backendless4null.png
backendless4null.png1479×577 66.2 KB

4

Try this:

Advertisement[photos].objectId is null

5

It works, Thanks a lot

6

Can you say also, how to make this request in Java?

7

Please see the documentation:

https://backendless.com/documentation/data/android/data_search_with_where_clause.htm

8

Thank you