SQL - Select like string - sql

Question

I have the following table:
create table #tbl
(
PartNumber varchar(20)
)
insert into #tbl values ('003A-I00-1')
insert into #tbl values ('003A-INT-1')
insert into #tbl values ('003A-I1')
insert into #tbl values ('003A-I2')
insert into #tbl values ('003A-I3')
I need to select the highest PartNumber where PartNumber is equal to 003A-I followed only by a number (or numbers). In other words, I need 003A-I3.
What I've tried:
select top 1 partnumber
from #tbl
where partnumber like '003A-I%' + '%[0-9]'
order by partnumber desc
But it doesn't work. It returns 003A-INT-1. I need 003A-I3.
I'm using MS SQL Server 2005.

Answer 1

select top 1 partnumber
from tbl
where partnumber like '003A-I[0-9]%'
order by partnumber desc
SQLFiddle
Update (in response to #Nicarus's comment:
SELECT top 1 partnumber
FROM tbl
WHERE partnumber LIKE '003A-I[0-9]%'
ORDER BY convert(varbinary(200), partnumber) DESC

Answer 2

If you want to get the numeric values, you can use the ISNUMERIC() function of the SQL
The code will be:
select * from #tbl
where isnumeric(replace(partnumber, '003A-I', '')) = 1
order by partnumber desc
REVISE:
ISNUMERIC() function returns Boolean value either true or false (1 or 0).
REPLACE() function replaces a certain pattern in an expression or string
For more information:
http://technet.microsoft.com/en-us/library/ms186862.aspx
http://technet.microsoft.com/en-us/library/ms186272.aspx
UPDATE (2):
You can use the following if you don't want to match a specific word, but as long as you know the text size which would be replaced
select top 1 * from #tbl
where isnumeric(substring(partnumber, 7, LEN(partnumber))) = 1
order by partnumber desc
The link on the SQLFiddle