DFS: What's the difference of move an object and update an object relationship by re-linking

Question

I have a document object in a folder. I can use update object relationship to relink it to another folder. I can also move the document to another folder. So. what's the difference?

If I try to delete a folder using DQL, I get the exception that the folder is not empty, so you cannot delete the folder. Does that imply that the relationship between the folder and the document is ObjectRelationship, or ReferenceRelationship?

Thanks

DCTM_Guru · Accepted Answer

"I can use update object relationship to relink it to another folder. I  can also move the document to another folder. So. what's the difference?"

- There should be no difference.  Move is just link to new, unlink from the old.

"Does that imply  that the relationship between the folder and the document is  ObjectRelationship, or ReferenceRelationship?"

- I'm not familiar with entities in DFS to answer this, but a document (or folder) is tied to the parent folder via i_folder_id attribute.