Getting root parent

Question

+--------+---------+-----------+
|   id   | title   | parent_id |
+--------+---------+-----------+
|    1   | Lvl-1   |   null    |
+--------+---------+-----------+
         


        

Answer 1

You are simply not going to believe this

I wrote a post in the DBA StackExchange (October 24, 2011) on how to pull this off using Stored Procedure programming. I also included some sample data and the results.