See why a hierarchical structure designed for XML could be a better choice than a relational database. Managing hierarchical data: A look at XML repositories | ZDNET X ...

I have never done any serious SQL design before. Anyways I have to store a hierarchical data structure, similar to a tree in a SQL database.<BR><BR>Right now I simply add a "parent_id" column in ...

A database organization method that is structured in a hierarchy. All access to data starts at the top of the hierarchy and moves downward; for example, from customer to orders, vendor to ...

In Access, an object is a data structure used to store or reference data; within Access, there are four main objects which includes table, queries, forms, and reports.