Hope this document will help to model hierarchical or nested data relationships with mongoDB .
MongoDB allows various ways to use tree data structures to model large hierarchical or nested data relationships.
- Model Tree Structures with Parent References
- Presents a data model that organizes documents in a tree-like structure by storing references to "parent" nodes in "child" nodes.
- Model Tree Structures with Child References
- Presents a data model that organizes documents in a tree-like structure by storing references to "child" nodes in "parent" nodes.
- Model Tree Structures with an Array of Ancestors
- Presents a data model that organizes documents in a tree-like structure by storing references to "parent" nodes and an array that stores all ancestors.
- Model Tree Structures with Materialized Paths
- Presents a data model that organizes documents in a tree-like
structure by storing full relationship paths between documents. In
addition to the tree node, each document stores the
_idof the nodes ancestors or path as a string. - Model Tree Structures with Nested Sets
- Presents a data model that organizes documents in a tree-like structure using the Nested Sets pattern. This optimizes discovering subtrees at the expense of tree mutability.
- Reference Used :- https://docs.mongodb.com/manual/applications/data-models-tree-structures/
