LinkedList

I have a table that I created that implements a linked list. I am not an
expert SQL developer and was wondering if there are known ways to traverse
the linked lists. Any information that can point me in the direction to
figure this out would be appreciated. The table contains many linked lists
based upon the head of the list and I need to extract all of the nodes that
make up a list. The lists are simple with a item and a link to the history
item so it goes kind of like:

1, 0
3, 1
7, 3
9, 7
...

Any suggestions would be helpful, or I will have to implement the table
differently.

Thanks
Ray Madigan