Query to get file name of field

Question

Hi folks,
I have one field in SQL table with whole file names:
e.g
C:\Directory1\File 1.txt
C:\Drirectory2\SubDirectory1\Image 33.jpg
I need one query to show only the file names:
e.g
File 1.txt
Image 33.jpg 
What I need to do to get only the file names as result of query? 

Answer 1

create table test (filenames varchar(100))
insert into test values ('C:\Directory1\File 1.txt'),('C:\Drirectory2\SubDirectory1\Image 33.jpg'),('aaa'),(null)
select Reverse(stuff(reverse(filenames)
, Case when Charindex('\',reverse(filenames))>0 then Charindex('\',reverse(filenames)) else len(filenames) end
, Case when Charindex('\',reverse(filenames))>0 then len(filenames) else 0 End
,'')) fileCol from test
--Or
SELECT Distinct Coalesce(S.a.value('(/H/r)[4]', 'VARCHAR(100)'), S.a.value('(/H/r)[3]', 'VARCHAR(100)'), S.a.value('(/H/r)[2]', 'VARCHAR(100)'), S.a.value('(/H/r)[1]', 'VARCHAR(100)') ) AS fileCol
FROM
SELECT *,CAST (N'<H><r>' + REPLACE(filenames, '\', '</r><r>') + '</r></H>' AS XML) AS [vals]
FROM test) d
CROSS APPLY d.[vals].nodes('/H/r') S(a)
drop table test