Usando este caminho adicionado
(11,2,'U\V\Z\L\O\Q\R\S\T') para mostrar várias pastas ausentes em um caminho:with cte as (
select BaseDirID, DisplayPath = left(DisplayPath,len(DisplayPath)-charindex('\',reverse(DisplayPath)))
from t
where DirLevel > 1
and not exists (
select 1
from t i
where t.BaseDirId = i.BaseDirId
and i.DisplayPath = left(t.DisplayPath,len(t.DisplayPath)-charindex('\',reverse(t.DisplayPath)))
)
union all
select BaseDirID, DisplayPath = left(DisplayPath,len(DisplayPath)-charindex('\',reverse(DisplayPath)))
from cte t
where not exists (
select 1
from t i
where t.BaseDirId = i.BaseDirId
and i.DisplayPath = left(t.DisplayPath,len(t.DisplayPath)-charindex('\',reverse(t.DisplayPath)))
)
)
select distinct *
from cte
demonstração do rextester:http://rextester.com/CEVGZ96613
retorna:
+-----------+-----------------+
| BaseDirID | DisplayPath |
+-----------+-----------------+
| 1 | A\B |
| 1 | A\B\C\D |
| 1 | A\B\F\G |
| 2 | U\V |
| 2 | U\V\M\L |
| 2 | U\V\W\X |
| 2 | U\V\Z |
| 2 | U\V\Z\L |
| 2 | U\V\Z\L\O |
| 2 | U\V\Z\L\O\Q |
| 2 | U\V\Z\L\O\Q\R |
| 2 | U\V\Z\L\O\Q\R\S |
+-----------+-----------------+
