Dear Abdul Sattar

I found an article on this site with the following link:

Article Ontology - Based databases for decision support systems

Please see if it is useful for you?

Behnood Farzad Thanks for your reply. This article is about databases and distributed databases. it is about the modeling of the domain using databases. The authors did not design domain ontology.

visit this link

read this article

https://www.ijstr.org/final-print/oct2013/A-Framework-To-Convert-Relational-Database-To-Ontology-For-Knowledge-Database-In-Semantic-Web.pdf

Adnan Majeed Thanks for your reply. This article only discusses theoretically. I need a real example. Thanks

I work with ontologies for 20 years. So, if there is a straightforward automated tool like this, then I should know about it. But I don't.

However, there might be different options for you. For example, if you convert you database to Excel spreadsheets or a number of Comma Separated Value (CSV) files, then you might import those files into an empty ontology with Protege 5.5 and Cellfie plugin. This workflow is not fully automated. So, you need to learn Cellfie specification language and write a Cellfie script, specifying the rules for "table to ontology" transformations.

Igor Toujilov Thanks for your reply. This solution seems good and easy. Thanks again. This will help and save time.