Select max int from varchar column

Question

I am trying to retrieve the largest number from a varchar column that includes both numbers and strings. An example of the data I\'m working with:

BoxNumber

Answer 1

Why not

SELECT MAX(CAST(Value AS Int)) FROM #bla 
WHERE ISNUMERIC(Value)=1 
    AND Value LIKE '%[0-9]%' 

then you're only dealing with numeric strings. In this case you may not need ISNUMERIC()