troubleshooting Question

SQL Query to get orphaned nodes

Avatar of Member_2_99151
Member_2_99151 asked on
DatabasesMicrosoft SQL Server
4 Comments2 Solutions318 ViewsLast Modified:
Hi all,
I have an interesting query that I am trying to create...

I have a table that contains entities, each of these *may* have a parent (only single level)

What I would like to do is query the table to find entries that say they have a parent, but the parent entry does not exist.

'A','Main Parent','-'
'B','First Child','A'
'C','Second Child','A'
'D','Another Parent','-'
'E','An Orphan','Z'

In this example, I would like to execute a query to get the record relating to 'E'

I've tried a few ways, but can't get it to work!!!

Any ideas would be very much appreciated..

Thanks a lot,


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