Achilleas Mantzios wrote:
Στις Wednesday 07 April 2010 11:06:44 ο/η Yeb Havinga έγραψε:
Achilleas Mantzios wrote:
You could also consider the genealogical approach, e.g.
The parents of any node to the root, i.e. the path of any node to the root are
depicted as
parents[0] : immediate parent
parents[1] : immediate parent of the above parent
What I have more than one parent?
Then it is no longer neither a tree, nor a hierarchical structure, but rather a
graph.
This a totally different problem.
My question was actually an attempt to point at the inability of what
you call the 'genealogical approach' database design to store
information of more than one parent.
regards,
Yeb Havinga
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