The idea behind the model hierarchical database is useful for some types of data storage, but it is not very flexible. the limitations of it means it is limited in a number of very specific uses. For example, if each individual in a company can report for a certain parts, the parts can be used as a parent record and the staff will represent the school records, each of which link back to that record a parent in a hierarchical structure.hierarchical database that was popular in the design of the original database, in the era of the mainframe. While some models of IBM and Microsoft are still in use, many other types of enterprise database using the model more flexible to accommodate more sophisticated types of data management. decentralized model makes the most sense, where the main focus of the gathering of information is a particular hierarchy as a list of the parts business, property or people that will all be linked up with the main data element specific level.
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