أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
There cannot be a comparison between a DocumentDB and RDBMS. It is two different technologies with different needs.
Because it is non structured. Size and shape of the document can be changed and also we get flexibility to store heterogenous data. And CRUD operations are basic needs.