title: SQL Server GUID to VarChar(36) or Char(36)?
body: <p>I am replacing some GUID column types, since I need to do some <code>Group By</code> work in MSSQL 2008. I was about to change the types to Char(36) since I know the exact size of the value, but after Googling a bit I see lots of people doing Varchar(36) instead. Isn't it better to do CHAR in this case?</p>