SQL Server : converting varchar to INT

Question

I am stuck on converting a varchar column UserID to INT. I know, please don\'t ask why this UserID column was not created as

Answer 1

I would try triming the number to see what you get:

select len(rtrim(ltrim(userid))) from audit

if that return the correct value then just do:

select convert(int, rtrim(ltrim(userid))) from audit

if that doesn't return the correct value then I would do a replace to remove the empty space:

 select convert(int, replace(userid, char(0), '')) from audit