Today, I found this very very useful blog on how to convert ntext fields to nvarchar(max) in Sql 2005. Apparently when converting a field from ntext to nvarchar(max), SQL Server does not change the internal structure and this is bad as the performance slows down significantly. However the following blog has got a simple fix to make SQL do the correct change.
http://geekswithblogs.net/johnsPerfBlog/archive/2008/04/16/ntext-vs-nvarcharmax-in-sql-2005.aspx
Written by Deepak Vasa - Visit Website
