definition of child-side row & parent-side row

varoluscuprens · 01-16-2015, 09:26 AM

Hi There;
I try to implement data warehouse : http://docs.oracle.com/cd/B19306_01/...ments_5006.htm

Here is a paragraph:

Use the CREATE DIMENSION statement to create a dimension. A dimension defines a parent-child relationship between pairs of column sets, where all the columns of a column set must come from the same table.

What is the parent-child relationship in this context?

Thanks in advance.

frankbell · 01-16-2015, 06:26 PM

This wikipedia article should help: https://en.wikipedia.org/wiki/Hierar...database_model