SQL “tree-like” query - most parent group

Question

I\'m having some trouble doing a \"tree-like\" query (what do we call this?) in SQL.

Take a look at my diagram below (table and column names are in danish - sorry ab

Answer 1

We use SQL Server 2000 and there is an example of expanding hierarchies using a stack in the SQL Books Online, I have written a number of variants for our ERP system

http://support.microsoft.com/kb/248915

I gather that there is a Native method using CTE within SQL 2005 but I have not used it myself