What are the disadvantages or drawbacks of the hierarchical database model?

The hierarchical model cannot represent all the relational connectivity of the entity and their attributes of the database model.
It can represent only basic detail of the database model which is not proper database model.
When we using this model for the project demonstration it will so lengthy to make their chart of hierarchical model and covers so much space in the board, page of the document.
This model is not possible to create without hierarchical characters.
When you deleted parent entity this model is does not exist for their parent base.
In this model if you delete any child entity so under the deleted child entity we lose those entity which has connected to deleted child entity.

draw back or disadvantage of hierarchical mode

In this image shows the wrong way to connect the child entity on hierarchical model which makes drawback or disadvantage of the model.

If you create and connect the new entity to parent entity it makes massive structure and difficult to find out the connection of all entity in the model.

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