Re: Migrating from Hierarchial DB model to RDBMS OR ?

Dana petak, 29. travnja 2016. u 01:02:30 UTC+2, korisnik Giri Reknar napisao je:
> Hi
>
> I am working IMS DB, a Hierarchial data model and need to convert it to a MODEL where I can build a Web app, I am thinking RDBMS unless there is something else is suggested.
>
> Now How do I go about Hierarchial to Relational ?
>
> Please note XML is Hierarchial as well but not sure how different it is from IMS

Hi
You can try to use Joe Celko's "Trees and Hierarchies in SQL for Smarties". I have not read this book, but I know that in this book are the following topics:

- Hierarchical Database Systems and IMS.
- Trees
- SQL solutions for these databases