Sort Dataview Grouped Elements by number of appending rows

[toteZitrone]

What I’m trying to do

I have several cases where I retrieve a dataview table with grouped elements. In this case I let dataview display all “dead links” (for not-yet-existing notes) and also retrieve the array of notes that generate this link. (Code below)

What I would like to do now, is to sort the first row (which are the non-existing notes) depending on how many notes are linking to them in the second column, so that I can easily see, which notes are especially important to make.

TABLE rows.file.link AS Bezug 
FLATTEN file.outlinks AS OUT
WHERE !OUT.file AND !(contains(meta(OUT).path, "/"))
GROUP BY OUT AS Anzulegen

Things I have tried

I tried google/forum search and browsed the Dataview library, but couldn’t find helpful information whether this is possible. I think there might be an option to retrieve the number alue of the connected notes-array by JS (no?) but I do not know JS and am not sure this can be applied as a sorting method to the first main column.

[toteZitrone]

To clarify what I mean, here an (unordered) example table as retrieved by the dataview code:

non existing note	files that link to it
note 1	-a -b
note 2	-c
note 3	-a -c -y

[holroy]

You could try the following:

```dataview
TABLE rows.file.link AS Bezug 
FLATTEN file.outlinks AS OUT
WHERE !OUT.file AND !(contains(meta(OUT).path, "/"))
GROUP BY OUT AS Anzulegen
SORT length(rows) desc, key
```

This should sort by the number in each group, and then by key if the number is equal.